1,000 Types of Cactuses with Pictures (Cactus Identification Chart)

Cacti are some of the most entrancing and unique plants on Earth ! From the loom saguaro cactus stand up tall in the desert to the tiny bristled pear with its bright flowers , these lively flora have evolved incredible bod and features to endure harsh , dry environs .

Can you imagine identifying over 1,000 unlike kinds of cacti ? It ’s an unbelievable world of spines , shapes , and surprising color waiting to be explored . With pictures to guide you , separating all the different cactus genera will feel like an risky venture through the desert ’s botanical wonders . Get ready to be amazed by nature ’s ingeniousness !

Cactus Identification Chart

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Types of Cactus with Names and Pictures

Acanthocalycium

Acanthocalycium is a group of cacti that comprise dissimilar character of plant from Argentina . The name of this group come from the Grecian word , ‘ akantha ’ and ‘ kalyx ’ , which mean the spines found on the tubes of their flower . These plants can have either a round or stretched - out shape , and their stalk are cover in many ribs and spine . They grow in Argentina and have unique features that make them special among cacti .

Acanthocereus

Acanthocereus cactus variety are limited types of plants that grow modest and bushy or spread out with curved stem . These fore have a unique shape with 3 to 5 rib , but sometimes they can have 2 or as many as 7 ribs , which is quite rare . The stems could be divided into segments or not .

All species of these cacti have white flowers that bloom at night , and some of them smell really nice . The spines on these cacti are short and duncical , similar to thorns . The bloom vacuum tube have rachis and scales , and the fruit they produce may or may not have thorn . When the fruits are in full grown , they turn ruby-red and become round , fill up with big black seeds surrounded by ruby-red pulp .

Acharagma

The Genus Acharagma consists of just two species found in Coahuila and Nuevo Leon - Mexico . These plants have round organic structure that are less than 3 inch in diam and no taller than 3 inch . They might have a shape that is jolly cylindrical and ordinarily grow individually , but sometimes they produce multiple novel plant at the stand .

Like Escobaria and Coryphantha , these plants have small swelling and flower farm from the top . However , unlike the others , Acharagma plant do n’t have a groove connecting the spot where the bloom grow to the master stem . In fact , the name Acharagma comes from Greek and think “ no groove . ” The flowers can be lily-white , red , or yellow , and the sepals often have a dour vertical stripe . The spine on the flora are stocky and can cover most of the stem , usually measuring less than an column inch in length . The fruit they produce are small and bland pods , which can be green or purple in color .

Ariocarpus

Ariocarpus is a extremely well-thought-of genus among cacti enthusiasts for its unequaled feature . These flora have a broken , stone - similar appearance and hole-and-corner bodies , pee-pee them support out among both cacti and other plant . Their dumb growth append to their allure , and see larger specimen , whether cultivated or in their natural habitat , is truly remarkable .

In the wilderness , Ariocarpus plants often acquire near to the ground and may be mostly concealed beneath the soil , with extensive taproot . abrasive conditions give them an almost lifeless visual aspect . However , when cultivated under favorable conditions , these plant life thrive and imprint chubby hillock of gullible bumps , ravish grower partizan . Ariocarpus plants are discrete from other cacti as they lack spines , except during the seedling stage . Their heyday emerge from the centre of the plant life and can change in color from pinkish - red to snowy , with some displaying shades of yellow .

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Armatocereus

Armatocereus is a captivating mathematical group of cacti that are like the towering giants of the desert . These unbelievable plants can spring up as improbable as almost 40 feet , making them one of the tallest cactus in South America . Their stem are divided into segment , and each twelvemonth ’s growth form distinct “ exigency points , ” create a unique and textured appearance . The stems also have ribs , ranging from 3 to 16 , and the genus gets its name “ Armed Cereus ” because of the spur it bears .

While some species have legion , tough spines that can exceed 4 inches , others have very few or even none . The flowers of Armatocereus are livid , with episodic flushed peak , and they have spines on their floral tubes . The yield can be either red or green , and they are cover in acantha until they ripen . Interestingly , the dried flower remain attached to the fruit , lead in an challenging deal . While Armatocereus is not normally grown in finish , it is not more thought-provoking to domesticate than other columnar cacti .

Arrojadoa

This group of cacti is aboriginal to Brazil and lie in of different specie that produce in heavy clusters of thin cylindrical stems branching from the base . In one metal money , the stems can arrive at a diam of 3 inch , while in others , they are much slight and can grow as tall as 6 1/2 feet . The plant life ’s body is extend with closely space and bristly pricker , making it difficult to see the minor ribs underneath .

When the inflorescence season arrives , the blossom emerge from the very tip of the plant life , creating decided ontogeny rings as the radical continues to grow . This results in a dog collar of spur between the young and old stem sections . The flower resemble sweet , waxy tubes and exhibit vibrant colors such as pinkish , red , whitened , or yellow . However , their blooming full stop is short - lived , lasting only one or two days before turn black and fall off . The fruit produced by these cacti are modest , juicy berries that can be pink , purple , or red in color .

Astrophytum

The name Astrophytum come from two Greek words : “ astron , ” meaning “ lead , ” and “ phyton , ” mean “ flora . ” It perfectly depict this genus , as all the specie in it have a wizard - shaped show when viewed from above . There are four main species of Astrophytum , which are rotund or slenderly cylindric . They are often compared to sea urchins due to their unique resemblance .

In add-on to these four species , a 5th member called A. caput - medusae was learn in 2001 . It stands out not only within the Astrophytum genus but also among all other cacti . Some enthusiast believe it should have its freestanding genus called Digitostigma , named after its prospicient , tentacle - corresponding tubercles . All five species , including caput - Medusa , have a flocking of white trichomes on their open , although some cultivated form lack this feature . They also produce yellow flowers with fuzzed tubes and eventually develop ironic seed pods filled with relatively large , fateful seeds that are promiscuous to burgeon forth .

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Austrocactus

Austrocactus is a group of cacti that includes ten metal money found only in southerly South America , specifically Argentina and Chile .

These plant can have either a single body or branches growing from the base . The ribs on their theme are typically separate into tubercles , except for Austrocactus spiniflorus . The tall species in this genus can grow up to 31.5 inch . The flowers they give rise come in various colors like pink , orange , red , or yellow and have a unique tube covered in rachis .

Austrocylindropuntia

Austrocylindropuntia is the South American adaptation of Cylindropuntia , and it got its name from the prefix “ Austro ” meaning southerly . This group of cacti is different from Cylindropuntia not only because they come up from a dissimilar geographical region but also because they have distinct characteristic . These cacti go to the opuntiads crime syndicate and have circular succulent leave on novel growth . As they age , these leaves fall off . you’re able to easily identify them by the glochids , bantam hair - like social structure , within the areoles .

Unlike Cylindropuntia , Austrocylindropuntia does n’t have papery sheaths on its spines . to boot , its stems grow without distinguishable segments between growth points . The flowers of Austrocylindropuntia can be scandalmongering , orange , or red and are ground on sturdy setaceous tube . The fruit are thick and rounded .

Aztekium

The Aztekium genus consist of two species , which were discovered more than 60 years apart . Despite the time disruption , these species clear belong to the same genus . They are found growing on vertical or near - vertical gypsum cliffs in the Mexican state of Nuevo Leon . These cliffs are gainsay environments where not much else can survive . Unfortunately , due to illegal collecting , these coinage face a high peril of extinction in the wild and involve serious protection .

Both species have a principal - shaped visual aspect . The first species discovered , A. ritteri , has rounded rib with many wrinkles , giving even young plants an ancient flavor . On the other helping hand , A. hintonii has more distinct and pointed rib with consistent banding across them . Neither specie has striking spines . They are relatively small , with theme that do n’t exceed 4 column inch in diameter , normally , half that size . A. hintonii stay as a undivided plant , while A. ritteri tends to forge clusters as it grows old .

Bergerocactus

Bergerocactus emoryi , also known as golden cereus or lucky serpent cactus , is a unique cactus species . It belong to to the Bergerocactus genus , which is named after Alwin Berger . Although it shares its vulgar name with another cactus called Echinocereus pensilis , it is the only member of the Bergerocactus genus .

The golden genus Cereus is sometimes refer to as a snake cactus because of its visual aspect . However , it is important to note that the name snake cactus can also implement to Echinocereus pensilis , another character of cactus .

Blossfeldia

Blossfeldia is a fascinating unmarried - species genus of cacti that fascinate our curiosity . It nurse the title of respect for being the minor cactus , with a maximum size of only 1/2 inch ( 12 mm ) in diam . Its metal money name , liliputana , ruminate its petite nature , inspired by the tiny people of Lilliput in the far-famed novel Gulliver ’s locomotion . These special plants can grow on an individual basis as small buttons or cluster together with multiple root . Unlike other cactus , they lack ribs , tubercle , or spines . The delicate snowy flowers of Blossfeldia are peculiarly noteworthy , as they can sometimes even exceed the diam of the entire stem turn .

Blossfeldia finds its habitat on the eastern side of the Andes mountain , spanning across Bolivia and Argentina . Remarkably , it thrives in harsh conditions , with elevations ranging from 4,000 to nearly 12,000 infantry . This incredible species has adapted to survive the extreme dryness of its environs , showcasing its resiliency in the grimace of adversity .

Brachycereus

Brachycereus is a unique genus of cacti notice in the Galapagos Islands . Its name comes from the Hellenic word “ brachys , ” meaning short , which describes its relatively low height . One species , Brachycereus nesioticus , stand up out for its ability to grow in challenging status .

This cactus mould clusters of cylindrical stem on barren lava flows , where few other plants last . With a height of about 2 animal foot and cover in yellowish to brown spines , it stands lively . The white flowers of Brachycereus blush on foresightful , narrow tube that reach just over 4 in in length . The strict shelter beat in the Galapagos Islands make this genus well-nigh unknown in culture , along with the reported difficulties in growing Brachycereus .

Brasiliopuntia

Brasiliopuntia is a exceptional radical of cacti within the Cactaceae house . This genus consist of only one species know as Brasiliopuntia brasiliensis . you could spot this cactus in country like Brazil , Paraguay , easterly Bolivia , Peru , and northern Argentina . Interestingly , it has also accommodate and grown of course in position like Florida and other regions .

Browningia

Brachycephalocereus is a group of telling columnar cacti that resemble trees and can reach heights of up to 33 feet . Many of these cacti have multiple shallow rib and may also have bumps call nodule . What ’s interesting about these species is that they have a unique spur pattern : when they are untested , they grow heavy spined , but as they mature , they develop fewer backbone .

The flowers of Brachycephalocereus can be either white or red , and they have big scale of measurement on their floral tubes . The fruits develop by these cacti are small . primitively from Bolivia , Chile , and Peru , they are not unremarkably grown in finish .

Carnegiea

The Saguaro cactus , scientifically called Carnegiea gigantea , is the only species in its unique genus . It ’s well placeable and considered the classic representation of a cactus . You ’ve probably seen it on mailing-card , book covers , toon , and paintings , as it symbolise the desert Southwest and the wide Western culture . Interestingly , these iconic cacti are limited to certain areas . They chiefly occur in central and southerly Arizona , with a small part extending into California along the Arizona borderline . This is quite different from the widespread perception of the Wild West that many people affiliate with these cacti .

bear beneath these splendid Saguaro giant is truly an awe - inspiring experience . They are unlike anything else in the plant world , with their leafless , succulent , and bristly bodies . What makes them even more remarkable is their telling meridian , arrive at over 50 feet , and their monstrous branch . With such extraordinary feature film , it ’s no wonder that these towering cacti have fuel endless folklore and inspire countless tales .

Cephalocereus

Cephalocereus is a type of cactus that grow slowly and can reach heights of about 50 invertebrate foot . However , one mintage called C. senilis is quite popular for its unique show . This species has prospicient bloodless tomentum that covers the smaller plants , making them resemble “ Cousin It ” from The Adams Family . The other metal money are not as well - known in cultivation but also have woolen or hair . These cacti acquire flowers on the side of their head , which is why they are called cephalium . All six species of this cactus genus can be bump in southern Mexico .

Cereus

In the yesteryear , the name Cereus was used for most cacti specie that were tall , costate , and columnar . However , many of these plant have been placed into different chemical group . As a result , the remaining 30 or so plants in the Cereus chemical group are mostly there because they have n’t been moved to another genus , rather than because they specifically match the description of Cereus . This grouping becomes messy and unsatisfactory .

A typical Cereus cactus is a bombastic , Sir Herbert Beerbohm Tree - like plant with well - defined rib , crowing spiky area call areoles , and firm , medium - sized thorns . Their peak are large , white , and normally opened at night , with legato or slightly lepidote tubing . They also have a pleasant fragrance . Some species that correspond this description admit C. hexagonus , C. hildmannianus , C. jamacaru , C. lanosus , and C. repandus . However , there are exception like the straggle climbers C. albicaulis , C. spegazzinii , and C. kroenleinii . C. insularis expect bushy and thin - stanch , resemble the Cleistocactus genus , and C. mortensenii has a growth on top that look like a brain .

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Cintia

Cintia knizei is a tiny cactus that grows in the high Andes of Bolivia . This special plant was found by Karel Kníže in 1969 at a height of 13,000 feet ( 4,000 meters ) near Otavi , in the Potosí Department of Bolivia . But it was n’t officially described until 1996 by Jan Říha .

Cipocereus

Cipocereus is a small grouping of cacti found in Brazil . These cacti are short and columnar . What make them stand out is the blue vividness of their fruits . The fruits have a reeking pulp inside , and this equipment characteristic helped in classifying them under the Cipocereus genus . The genus was established in 1979 by F. Ritter . Before that , some of the specie were place in dissimilar genera . After the creation of the Cipocereus genus , a few species were relocated from other chemical group , and a new species that had not been named before was also discovered .

Cleistocactus

The Cleistocactus genus induce its name from the Greek word “ Cleistos , ” which means conclude . This refers to the blossom of these cacti , as they seldom in full open . In some ways , it can be enounce that Cleistocactus focuses more on quantity than quality . The stems of these cacti are commonly about an inch in diam , but they branch out easily from the base , forming noticeable clusters . The spines , though small and flexible , are obtusely packed , often covering the bow . The flowers also follow this pattern . Many species have flower buds that look like little tubes of lipstick or banger . The stems can be deck with legion flowers , sometimes bloom all yr around under the right condition .

Cleistocactus can be found in various parts of South America . They grow in large , shaggy chunk alongside other plants or even climb over rocks . Some coinage from this genus are extremely favored in cultivation and are unremarkably seen in glasshouse worldwide . Among the most popular cacti in this genus are C. strausii and C. winteri .

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Coleocephalocereus

Coleocephalocereus is a group of tall and part improbable cacti find in Brazil . These works grow in an unsloped or semi - upright manner and organise a woolly and bristly structure called a cephalium . They are usually witness on rocky outcrop called inselbergs in the Brazilian Atlantic rainforest . In these isolated dome - shaped rocky area , they can be a prevailing part of the plant life life history .

All species in this genus are relatively short and columnar , except for a subspecies of C. aureus that has a libertine form . The stems have multiple shallow ribs , which can be slightly bumpy or mostly straight . The cacti have restrained thorn that arise closely together from small and closely spaced areas called areoles . One discrete feature of this genus is the presence of a side cephalium , from which small vasiform flowers in ashen or blood-red colors bloom . The fruits of these cacti are small , pear-shaped , and reddish in coloration .

Consolea

Consolea is a grouping of cacti mainly found in the Caribbean , include Florida in the United States . These cacti are like small trees , reaching a maximal superlative of 20 feet . They begin as prostrate tablet called cladodes , which later transform into round trunks . At the top of these trunks , new phylloclad develop in a messy arrangement , resemble leaves . This unequaled feature of straight , rotund , unsegmented stems helps identify the Consolea genus .

Moreover , the flower of Consolea cacti have distinct qualities not seen in other cacti of the Opuntia family . This includes unique seeds , pollen , and flowered nectaries . The bloom themselves are usually small , less than 1 inch in diameter , and egress from comparably big pericarpels , which may or may not have pricker .

Copiapoa

Copiapoa is a darling genus among cactus growers for its unique equipment characteristic . Unlike other cactus roll in the hay for large bloom , Copiapoa species show a across-the-board range of variations . These cacti generally have a rotund or cylindrical shape with well - defined ribs and a fluffy top , giving advance to yellow flowers . These funnel - mold flowers are mostly 1 to 2 inch in diameter and look quite similar across different flora .

However , Copiapoa cacti differ when it comes to spines . Some may have long and violent spines , while others may have just any spines at all . Their root also march variation , with some having fibrous roots and others having big tubers underground , bigger than the visible portions above ground . Some Copiapoa plant arise individually , while others form clusters with one C of stems , creating impressive mounds several feet across . The color of these cacti can range from disconsolate - green to mysterious unripe or brownish . Identifying a specific Copiapoa species can be challenging due to these variations .

Coryphantha

Coryphantha , also known as the beehive cactus , is a small round plant with grooved eminence alternatively of costa . It belongs to a group of standardised plants called Mammillaria and Escobaria . Coryphantha flowers grow on the top of the plant ’s fresh growth , while Mammillaria bloom come along in rings further down the plant .

On the other handwriting , Escobaria also blossom from the top , like Coryphantha . In the past , many Escobaria works were count part of the Coryphantha genus . The independent difference between them is the seed coats : Coryphantha has a net - like pattern , while Escobaria has pitted pattern .

Cumulopuntia

Cumulopuntia is a dissimilar group of cacti that was in the first place consider a part of the Opuntia genus . However , it was later recognized as a separate genus by F. Ritter in 1980 . This distinction is base on the yield , which lack pulp magazine , and the unique structure of the seed . Cumulopuntia plants develop in a thickset cushion shape .

Initially , over 30 specie were key , but the number was reduced to 20 by Anderson and further reduced to just 4 species ( with 4 subspecies ) in The New Cactus Lexicon . These cacti are mostly found at eminent elevations in south - central South America . They are not easy to find in cultivation , as they are modified to specialist nurseries or exchanged between agriculturist . Similar to other Opuntiads , these cacti have polarise ruling among cactus partisan , with many growers make sundry feeling about them .

Cylindropuntia

The Cylindropuntia cacti , commonly known as “ Cholla , ” are not commonly acquire except by avid Opuntia fancier . However , they are well - know in the comeuppance of the Southwest United States and Northern Mexico . These cacti have segmented cylindrical stems that resemble small tree , typically not arise taller than 10 foot .

Most Cholla species have spiny prow handle with a papery sheath , which may fall off over clip , giving some coinage a atomic number 47 or Au appearance . The spines have reverse barbs , making them stick to the skin and causing great pain when removed . Some Cholla species are called “ Jumping Cholla ” because their stem segment easily come off and hang to unsuspecting victims . These segments can spring up into new flora when spread by animals .

Discocactus

The Discocactus genus is highly valued by collectors worldwide . It ’s not entirely clear what makes them so appealing , but their comparatively small size , striking white flowers , and slow growth are likely lead factors . These cacti have flat to round shapes , with stems that are usually less than 3 inch tall and 10 inches broad . The stems have ribs or small bumps and may be cover in fuzzy areas or dense rachis .

Most Discocactus plants originate severally , but some may form bunch . When these cacti bloom , they develop a wooly growth at the top with beautiful whitened flowers that have a long , thin metro . The flowers , which give at night , are extremely fragrant and often considered the best - smell cactus flowers by many raiser .

Disocactus

Disocactus is a genus of cactus that mostly spring up in tropical jungles , rather than deserts like many other cacti . Most species of Disocactus are found in Central America , Southern Mexico , and some contribution of northern South America and the Caribbean islands . The stems and flowers of Disocactus metal money vary greatly , which stimulate a fortune of debate among experts about how to separate them . Some specie are also know by dissimilar name like Ackermannia , Nopalxochia , and Wittia .

The theme of Disocactus can be long , two-dimensional , and leaf - comparable , similar to those of the Epiphyllum genus . Others have cylindrical material body and spines . The flowers , which are a defining characteristic of this genus , are mostly large , colorful , and funnel - shape . Disocactus is also responsible for many popular “ Epi ” crossbreed . However , some specie have narrow , bilaterally symmetrical bloom , while others have little , tube - shaped ones .

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Echinocactus

The Echinocactus genus now includes only six species , although historically it let in hundreds of specie . The name Echinocactus was used to radical barrel - shaped cacti with rib that were not already classify under Cereus or Melocactus . However , some cactus experts believe that the remaining six species should be classified into freestanding genus since they have distinct divergence .

Despite the disputation , the remaining Echinocactus species share common trait . They get a dense , muzzy growth at the top of the plant , which gives lift to the flowers . These cacti have a barrel shape with clear ribs and robust spines . Their flush are yellow or pinkish and funnel shape - work . barrel cactus mintage resemble the Ferocactus genus , except for the wooly apex . The fruits can be juiceless and woolly or fleshy and round .

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Echinocereus

Echinocereus is a type of plant life loved by cactus cultivator worldwide . They are small plants , double-dyed for growing in pots and greenhouse . The shank are usually less than a invertebrate foot improbable and about 2 to 3 inches broad . Some are a picayune bigger , some are littler . In the wilderness , some coinage can form large cumulation with hundreds of stems , but it takes many year for this to chance .

Echinocereus cacti have a broad variety of spines . Some have bowelless and spectacular spine that cover the stem completely , making it invisible . Others have equally circularize middling sized spine , and some even have colourful acantha in flip-flop pattern . Some species have coxcomb - like spines , while others are almost thornless . The spines are arranged on rib .

These cacti produce some of themost bright flowersin the cactus family . The flowers fare in colors like electrical pink , recondite ruby , translucent browns , Green , and bright yellow-bellied . Many coinage have prime with two vividness , with one color in the inwardness and another on the outer portion of the flower .

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Echinomastus

Let ’s speak about another eccentric of cactus name Echinomastus , which is ground in the Southwestern United States and nearby Mexico . This grouping of cacti is relatively modest , with about 5 to 9 specie . They have short , elongate , round soma . you could well identify these cacti by icon . These cacti ordinarily do n’t grow tall than 12 inches and their stems are cover in circle of spines , make it strong to see the actual stem . The backbone develop from specific point on the cactus in quarrel . Sometimes , there are grooves on these points and there may also be extrafloral nectaries .

The flowers of Echinomastus come in people of colour like flushed , pinkish , cream , or even chocolate-brown . They have a funnel form and efflorescence during the day . The flowers sprout from the tips of the cactus ’s spiny points and often have to force through the beleaguer prickle . When the fruits are ripe , they open either at the bottom or split lengthwise .

Echinopsis

There are over 100 mintage in this genus , and they show a batch of variation . Echinopsis plant life can rate from small , flattened round shapes to elephantine , arboreous ones . This lead to many unlike names for the same species , which can be thwarting when seek to sort through them .

In more recent thinking , theTrichocereusand Lobivia genera have been include with Echinopsis . The main lineament that connects these plant is their gravid and flashy flowers . The flowers have a funnel shape and hairy or wooly scale tubes , which produce circular fruits filled with soft pulp . The flowers commonly last only a day and can blossom during the 24-hour interval or Nox , depend on the coinage . These cacti can easily hybridize , leading to a huge numeral of crossbreed that some cactus growers speciate in .

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Epiphyllum

Epiphyllum is a eccentric of epiphytic cactus with 19 different species that can be find in Central America . Some common name for these cacti are climb cacti , orchid cacti , and leaf cacti , but the term “ leafage cacti ” can also refer to another case of cactus name Pereskia .

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Epithelantha

Epithelantha is a genus of just two metal money of humble cacti . There are variations in the spines , but most expert have settle on just the two species and distinguish the variation as race . The plants are tiny , with stem that are unremarkably less than 2 inches in both diameter and stature . The snowy spines farm out of tubercles , similar to another case of cactus called Mammillaria .

One elbow room to name Epithelantha is by front at its bloom . The flowers go forth from the same surface area where the pricker grow , at the end of the tubercle . This make Epithelantha dissimilar from Mammillaria . The flowers themselves are small , light pink , or white funnel shape that look delicate . While these slight flowers may go unnoticed , the yield of Epithelantha is quite optic - catching . The yield are long tubes that stick up like birthday candles , and their burnished reddened color stick out out against the clean spur .

Eriosyce

Eriosyce is a group of cacti mainly find in South America . They have round , ribbed staunch covered in dense , strong spines . Originally , they were think to belong to to the Echinocactus genus , but since Rudolph Philippi in 1872 , it has been established that they are freestanding . In the past tense , there have been different names used for these cacti , including Neoporteria , Neochilenia , and Islaya .

The Neochilenia mathematical group is qualify by short to no spines and funnel - shaped flowers . Their floral underground are haired and later on develop into overweight fruits . On the other hired man , the Neoporteria group has denser and long spines compared to Neochilenia . Their flowers are bright pinkish with yellow interior , mold a tube human body when open . However , the inner share are still covered by flower petal . The Islaya mathematical group is highly variable and can be found in Chile and Peru .

Escobaria

Escobaria plants have small daily round or cylindrical root word with extrusion called tuberosity . In the past tense , some of these industrial plant were thought to go to other cactus radical like Mammillaria and Coryphantha , but they are now classify as Escobaria .

One difference between Escobaria and Mammillaria is how they flower . Escobaria blooms from new outgrowth at the top , while Mammillaria heyday from its sides . Another differentiation is that Escobaria ’s tubercles do n’t have disjoined part for develop spine and flowers , unlike Mammillaria . Another cactus grouping call in Coryphantha has seeds with a crisscross form , while Escobaria ’s seeds have pit . However , there are other ways to tell Escobaria apart , such as the want of extrafloral honey gland , fringe bound on its peak , falling off of tubercle as they get on , and smaller pink flowers .

Espostoa

permit ’s talk about Espostoa , a group of cacti found in Ecuador , Peru , and Bolivia . These tall columnlike plants have stem that resemble a city skyline , branching at the stand . One of the most striking features of Espostoa is the dense , white “ hair ” covering their shank , giving them a gentle andfuzzy look . However , underneath this softness lie sharp spines that are dress on small ribs encircling the columns . Some coinage even have long central sticker that stand out among the fuzz , make them look minacious .

In cultivation , sure species of Espostoa are quite popular because of their fuzzy appearing . They are commonly sold as 6 - 12 - inch base by commercial grower . However , when these large columnlike industrial plant are turn in potty , they do n’t grow as vigorously as they would in the ground . They tend to fill up the pots quickly , which slows down their growth . Due to this , they rarely extend to maturity , which means they do n’t produce a exceptional part called the cephalium and , as a solvent , do n’t flower . On the other helping hand , in warmer climates , where people can plant these cacti directly in the ground , they can shape impressive clusters of stems and finally blossom .

Espostoopsis

Let ’s learn about Espostoopsis , a genus of cacti similar to Espostoa . However , there are some interesting remainder . While most Espostoa species are found in western South America , Espostoopsis is native to Brazil . Taxonomists initially placed this species in other genus like Austrocephalocereus and Coleocephalocereus before give it a unique name in 1968 .

In demarcation to Espostoa , Espostoopsis has naked flower tubing , similar to Coleocephalocereus and Micranthocereus . The yield and seeds of Espostoopsis are variable , but they have dark , tuberculate seeds , unlike Espostoa ’s smooth or rough ejaculate . difference in yield stem also go up from these dissimilarity in flowers .

Eulychnia

countenance ’s explore the fascinating Eulychnia genus of cacti . These remarkable plant can reach up to 23 feet ( 7 m ) marvellous and are found in the deserts along the coasts of Chile and Peru . These deserts hardly receive any rainfall , but the plants carry off to survive by swear on the abridgement because of the heavy fog in the region . In their natural home ground , Eulychnia species produce as expectant shrubs or tree diagram with numerous branches .

The stems of these cacti are wrap up in long spines arrange on ridgeline . The flower subway system are also spread over in spines , fleece , scales , or sometimes all three . When the prime bloom , they take shape a rotund shape that resembles a musket ball that has burst open on one side .

Ferocactus

rent ’s talk about Ferocactus , a remarkable genus known for its iconic barrel physical body that is often limn in desert art , cartoon , and movies . These cacti have become known as “ The Traveler ’s Friend ” due to a opinion that they stash away fresh drinking pee in their drum , wait to be tap by lost and thirsty spider . However , in reality , it is not recommended to drink water from Ferocactus as it is too alkaline and can aggravate dehydration . Instead , a better source of water can be found in the flattened folio - like inking pad of the nearby Opuntia cacti .

The coinage in the Ferocactus genus in general have gun barrel - shaped or rotund prow , with some forming clumps of multiple stem . These stem turn have ribs and can be straight or slightly jumpy . Ferocactus plants have portly sticker , some of which are thick and heavy , and may be true or hooked . The spinal column get along in various color , such as yellow , gray , white , brown , pinkish , or even brilliant redness . fundamental spines may have ridge running perpendicular to them .

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Frailea

rent ’s learn about Frailea cacti , which are small and can be either alone or uprise in clusters . Their flattened round stems typically do n’t transcend 2 inches in diam . These stem have shallow ribs that can be straight or wavy . If there are any pricker , they are tiny and posture no threat to our fingertips . The yellow flowers of Frailea are often larger than the stem themselves and may open shortly during the hottest part of the day , or sometimes not at all .

One interesting thing about Frailea is that they are cleistogamous , which means that their flowers often do n’t even emerge . Instead , they ego - pollinate inside the works . Sometimes , growers are surprised to rule fruit with seed on their plants , even if they have n’t noticed any peak before . clean seeds have a high chance of germinating easy , and sometimes they are already sprout at the base of the main plant life without the owner even cognise the seminal fluid were there .

Geohintonia

Let ’s search Geohintonia , a alone genus lie in of a individual species . These cacti have a distinctive appearance that sets them apart from others . The shape of their dead body can be round or moderately columnar as they grow old . They display around 20 outstanding ribs with flat English that resemble cooling fins on a round radiator .

The plant have a frosty , down in the mouth - gray color . Along the edges of the ribs , you ’ll find white areoles with short and flexile spines at the top . As the plant grows , these areoles go down off , leaving scars along the rib . The flowers issue from the wooly top of the plant and are dark pinkish with a funnel shape - like embodiment , adorned with yellow stamens and a bloodless stigma .

Grusonia

In the book squall The New Cactus Lexicon , it was decided that all the species previously classified in Grusonia have been move to a different grouping called Corynopuntia , except for one specific species called G. bradtiana . This means that Grusonia is now believe to be a case of genus that only has one species . Grusonia belongs to a subfamily called Opuntioideae , which is known for its glochids ( lilliputian back ) , segment or jointed stems , and leaves that come out briefly on new growth .

Grusonia cacti are mostly short and scatter out like mats , with duncical spines on grim ridges or small bumps . Unlike similar cacti send for Cylindropuntia , the spines on Grusonia cacti are not cover with a papery layer , although some may have a bit of this lineament . The heyday of Grusonia cacti can be pink , icteric , or even blanched . They have a loving cup - comparable shape and come along waxy or bland like satin . The fruits of these cacti are typically prickly , juicy , and dry .

Gymnocalycium

name an unknown cactus and placing it in the Gymnocalycium genus can be easier when you have a flower bud . However , choosing the specific species is a bite slick . Most mintage in this genus are round and maturate separately . They have ridges on their surface that slightly resemble a mentum , pull in them the nickname “ Chin Cactus . ” Typically , each subdivision of the cactus has a few spines of the correct size . While there are exceptions , like cacti that grow in clumps or have more tuberosity and spine , the presence of peak bud assist confirm that they belong to the Gymnocalycium genus .

The flowers of Gymnocalycium cacti are described as “ defenseless , ” mean they do n’t have spines , woollen , or bristles . They are liquid and resemble the tip of young Asparagus officinales shoot . Most coinage have white , emollient - colored , or wan pinkish flowers , although a few may be dark ruby or yellow . The heyday are of moderate size liken to other cacti , usually around 1 to 1.5 inches encompassing . Gymnocalycium flora tend to bring out flowers at a young age but take high-pitched estrus to to the full open . Because of this , they thrive better in a glasshouse , especially if you live outside of Arizona .

Gymnocalycium cacti can reach a acme of about 7 inches and a diameter of 12 column inch at their largest , although most species stay under 5 inches in tallness and diam . These cacti are small in sizing and comparatively easy to wish for , which is why they are popular among cactus partizan .

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Haageocereus

Haageocereus cacti have cylindric stems with shallow ribs and are cover in nearly spaced spines . In many species , the thorn make it difficult to see the stems . These cacti can arise upright as tall pillar or have sprawling staunch that crawl on the earth . The flowers have a funnel shape - similar shape , and the floral tube can have weighing machine and hairs to different extents count on the species . These cacti bloom at night but the flower can remain open during the Clarence Shepard Day Jr. . Most of the blossom are clean and have a pleasant fragrance , although some may have a pinkish - to - red colour . The fruit of Haageocereus cacti are round and juicy .

Harrisia

Harrisia cacti belong to a genus that consists of around twenty species . Some of these species are commonly cultivated and used as plants in warmer climate where they can spread out and grow freely . The stems of Harrisia cacti are usually thin and have only a few rib . They have areoles , which are pocket-size areas where spines spring up , and these spines are flimsy and phonograph needle - corresponding . This makes the stems easily visible .

All metal money of Harrisia cacti have large white flower that bloom at night and give off a pleasant aroma . The flowers have bristles or fleece on their tubes . The fruit of these cacti are circular and can be yellow or red . They are fleshy domain , and the appearance of the fruit can help identify the dissimilar specie of Harrisia cacti .

Hatiora

The name of the genus Hatiora was created by plant scientist Britton and Rose in 1923 to reward a previous botanist named Thomas Hariot . The name was to begin with spelled “ Hariota , ” which made more sensory faculty , but due to rule in plant naming , this earliest name had to be exchange .

Today , the genus Hatiora let in about 5 or 6 species . These cacti are epiphytic , which means they farm on trees in area that are more cockeyed and humid . The stems of these mintage can either be monotonous and leaf - similar or round in physique . Some mass prefer to use the name Rhipsalidopsis for the coinage with leaf - like stems . These cacti grow and get flowers only from the ends of existing stem segments . The flowers can be yellowish - orange , pink , or bright red , and the fruits are overweight and either round or slant .

Hylocereus

Hylocereus cacti are famous for produce exotic fruits know as Dragon Fruit . The cacti in this genus acquire like vine , cower and climb their way up tree . Most species do not grow on tree forthwith but have roots in the ground and then rise upward . These works can branch out oftentimes and attain heights over 30 feet , becoming quite massive . The radical typically have three angles with wavy or jolting edges and may have a few unretentive vertebral column , but not always .

The flowers of Hylocereus are the largest among all cacti , with some exceeding 12 inch in duration and diameter . They are primarily white and have a lovely fragrance . They bloom at night , but surprisingly , they remain candid for only a few hour on a single dark .

Isolatocereus

The genus Isolatocereus consists of a individual coinage . These plants closely resemble the Stenocereus specie and can be find in the same geographical areas . The plants have shallow ribs , typically between 5 and 8 , on stems that can arrive at up to 6 inch in diameter . Straight and sturdy rachis arise closely together along the ribs in specific area visit areoles . The stems have an attractive blue - green outer cutis . The overall growth pattern of I. dumortieri resembles that of a low - branched tree diagram , with long outgrowth extending up to nearly 50 foot . The flowers of this species are greenish - livid and bloom at night , but they can stay on open during the day .

This plant life ’s distinct coloring , bod , and spine blueprint make it worthy for refinement , chiefly as a landscape painting plant due to its large size . Although it can be found in cultivation , it is unlikely to see flower unless the plant is originate in the ground . In their natural home ground , these plant life are far-flung throughout fundamental to southwestern Mexico .

Lasiocereus

The Lasiocereus cactus has foresightful , cylindrical stems with many vertical melody and small , spiky parts that can be seen easily but do n’t cover up the stems too much . Its flowers mature from fuzzy part of the shank that have n’t fully developed into a special top part . These efflorescence are form like tubes , bloom at night , and have a white colour . The tubes have both fuzzy and bristly parts , and they are wider liken to similar plants ’ flowers .

Lepismium

Lepismium species of cacti can be establish living on Tree ( epiphytic ) or stone ( lithophytic ) . They acquire in hang bunch with many outgrowth that start from the heart of the base . The stems can be flat , angled , or round in shape . Flowers grow on the sides of the stems and often cover the intact distance of the stem on both sides . These flowers are usually small-scale but bigger than those found in a interchangeable cactus call Rhipsalis . Some Lepismium species have colourful flowers , while others have bloodless flowers that later turn into bright - colored fruit .

Leptocereus

Leptocereus is a character of cactus that include around a dozen species . These cacti are detect in the Caribbean island , and it ’s very rarified to see them in refinement . That ’s why most cactus growers are unfamiliar with this genus , only knowing about them through uncommon photos and limited selective information online .

These plant are mostly bushy and spread out , but they can also develop into grandiloquent Tree , reaching heights of up to 30 feet or more . The stems have distinct angle and just a few heavy ridges . On these ridgeline , there are spaced - out areas called areoles , which have cluster of about 10 backbone . Some of these spines may fall off as the cactus ages . The heyday are either snowy or off-white - green and often have spines on put up areas of the cactus . In some display case , Leptocereus coinage can even grow a limited top part call a cephalium .

Leuchtenbergia

Leuchtenbergia is a unequaled character of cactus that only has one specie called L. principis . What makes it remain firm out is its special contour , completely different from any other cactus species . you could well identify it by its incredibly long triangular bump , known as tubercles , which can grow up to 5 inch long ! These tubercles are stage in a orbitual shape , similar to how leaves are arranged on an Agave or Yucca works . Each tubercle has a spot cry an areole at its goal , which has foresighted , thin , flexible spines . These spines can be as long as 8 inches !

When the industrial plant grows newfangled tubercles in the center , bloom start to appear . These flowers are bright yellow and can be large than 2 inches in diameter . They add an extra touch of knockout to this alone cactus .

Lophophora

Lophophora is a variety of cactus that does n’t have any spines . It has a round shape like a button and is found in Texas , specifically from Presidio County to Starr County , along the Rio Grande River . It also grows in parts of Mexico , extend from the northeast to the Second Earl of Guilford - central region , reaching as far as Querétaro in primal Mexico .

Maihuenia

Maihuenia is a particular type of cactus that stand up out from other cacti because it has its unique group called the subfamily Maihuenioideae . Most cacti have spiky stem , but Maihuenia plants are unlike . They grow flat on the earth like small mats , made up of short and round segment . These segments have about 3 spine each and even have small , round leaves that do n’t fall off like leafage on other cacti .

When it ’s time to bloom , the flowers come along at the ends of the stems and can be shade of yellowed , wander from almost white to a bright orange . After the flower , Maihuenia spring up gild - form fruits that are soft and fat , inside of which you could discover protective layer called bract . This is what make Maihuenia an extraordinary and alone case of cactus .

Maihueniopsis

Maihueniopsis plants are interesting because they grow in close cushions on the ground , with their stem turn segments packed closely together . The stems have a round or globular shape , and some coinage even have big taproots that grow mostly cloak-and-dagger . Unlike Maihuenia , the leaves on Maihueniopsis plant light off as new part of the plant rise . These flora have spines that can be recollective and abundant , providing aegis , or they can be minor and tightly press against the stem .

When it ’s clock time to flower , Maihueniopsis plants mostly produce yellow flowers , although sometimes they can be white or even red . These colorful flowers bring brightness to the flora and make it even more enthralling .

Mammillaria

The Mammillaria genus is a self-aggrandizing chemical group of cacti with around 200 dissimilar metal money . Most of these mintage have a round , clump - like shape and can grow alone or in mathematical group . Sometimes , these groups can have many base and reach out over 3 feet tall , but generally , the plant are around 6 - 8 inches tall and 4 - 6 in wide . What makes Mammillaria plants unique are their nipple - like bump called tubercle , which have different type of spines . These backbone can be brusque and thick , few or many in number , bristle - like , hairsbreadth - like , or even form like a cockscomb . They come in various color too . Sometimes , in the spaces between the tubercles , there may be fluffy wool or bristles , or sometimes neither .

When it ’s time for the plants to flower , the flowers mature from the spaces between the eminence in their 2d yr of growth . They often make a ring - comparable contour around the stem of the cactus . In many coinage , the bloom are small and pink , less than half an inch in diameter . There are also small yellow or livid blossom , but a few coinage have stunning flowers that stand up on long tubes above the plant .

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Mammilloydia

Mammilloydia candida , also know as ‘ Snowball , ’ is a especial cactus that many citizenry discover attractive . It has dense spine all over it , which are snow-clad white in color . The spinal column are so thick that they almost hide the organic structure of the works . Mammilloydia is closely colligate to a similar cactus genus called Mammillaria , but they have unparalleled seeds and other divergence that make them separate genus .

Matucana

Matucana species of cacti are mostly orotund or cylindric plants with shallow line and luminance to intermediate spines . The big ones can reach about 30 inches tall , but most are under a foot in height . These cacti have clear bumps on their lines and usually have burnished green body . The flowers of Matucana cacti are singular and showy . They are often asymmetric and stand tall above the works on long subway system . Most flush are red , but you could also find them in other colour like orange , pink , yellow , or white . The fruits are juicy and circular , adding to the appeal of these cacti .

Melocactus

Melocactus is a engrossing type of cactus that looks different as it develop . When it ’s immature , it face like a distinctive immature cactus with round stems and sticker that face like an star . But as it maturate , it develops a unusual , bristly “ cap ” anticipate a cephalium on top of its base . This cephalium keep growing , sometimes reaching more than 3 foot in height . Most of the clip , the cephalium is clean underneath and orangish on top , although it can be wholly white .

Inside the cephalium , small pinkish flowers commence to bloom . These flowers are not very obtrusive , and often , people only agnise the flora has flower when they see the yield that appear after . The fruits are short tubes , red or pinkish , that count like wax candela on a birthday patty . The dry clay of the flowers even resemble the taper of these “ candles . ”

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Micranthocereus

Micranthocereus is a case of cactus that has recollective , slender root . These stem can develop as straggle shrubs or single root word . They have ribs that give them a ridge appearance , and they also have flexible spines and sometimes wool . The flowers of Micranthocereus are small tube that descend in dissimilar colours like red , orangish , white , or even a intermixture of colors . These flowers grow from a particular expanse called a sidelong cephalium , which is a flocculent or spiny emergence along the side of the stalk .

Miqueliopuntia

Miqueliopuntia is a genus dwell of a single species from the glide of Chile . The plants can be likened to the North American genus Grusonia in growth habit and visual aspect . Miqueliopuntia plant life consist of cylindrical , jointed stalk segments with striking tubercle . Areoles fall out at the top of each tubercle and have many glochids . prickle in the home ground are numerous and shaggy reaching about 3 inch and giving the plants an untidy coming into court . Spine density is affect by the surround and “ softer ” conditions result in smaller and less numerous spine coverage .

blossom get up from boneheaded , fleshy floral tubes which closely resemble the root segments . The bloom may be pink or xanthous - green / almost white and are cup - shaped . Fruits are ball-shaped and intemperately armed with spines and/or glochid . Like many Opuntiads , the yield themselves can be rooted and grown into disjoined plants .

Myrtillocactus

There are four character of Myrtillocactus plant , and they are all interchangeable in some way . They look like trees and have many arm . These plant have around 4 to 8 detectable ribs on their stems . Each rib usually has one long spine in the centre and only a few short spine on the English . Sometimes , the spines might not be there at all . The flowers of Myrtillocactus are small , value less than an column inch , and they have short tube-shaped structure that keep them tightlipped to the stems .

One interesting matter about Myrtillocactus is that the spiky component on them called “ areoles ” can have multiple bloom . These blossom are a greenish - white color and have a waxy visual aspect . What ’s really cool is that groups of flowers can flower on the bow all at once . After the flush , blueberry - like fruits start to rise . These fruits are yummy and have been bask by the people of Mexico for C of class . They are still being harvested today and are often sold in local market . Some the great unwashed even say that these fruits seem similar to Bilberry or honest Myrtle yield .

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Neobuxbaumia

Neobuxbaumia is a type of cactus that can be found in the eastern and southern parts of Mexico . These plants originate in openhanded groups that brood the hill , make telling cactus wood . Depending on the source , there are around 8 or 9 different specie of Neobuxbaumia . They are all quite large and look like magniloquent trees , reaching elevation of nearly 50 groundwork . The stems of Neobuxbaumia are columnar , meaning they are shaped like columns , and they have many costa . As these cacti turn older and swelled , they begin to separate out . When they ’re immature , their appearance can vary a stack , reckon on the size of the spines compare to the size of it of the stalk .

The younger Neobuxbaumia works ordinarily have a lot of spines on them . However , as they become adults , the backbone on the low parts of the stem either disappear or become smaller compare to the sizing of the stalk . The ribs on these plants might have small bumps , and the spines on them are not peculiarly thick , so you could still see the shape of the stems underneath . The flowers of Neobuxbaumia are bell - shaped and can be either ashen or pink . They bloom at night and are often pollinate by bats . The yield of Neobuxbaumia are orotund and have prickle on them . When they ’re ripe , they split open to reveal a bloodless pulp magazine deep down .

Neolloydia

Neolloydia is a special group of cacti . you may witness these cacti in two place : the dry chaparral areas of southerly Texas , specifically Big Bend , and the Chihuahua Desert in Northeast Mexico .

Neoraimondia

Neolloydia plants are exchangeable to trees and can either have branches close to the ground or grow on a single trunk . The shank of these plants have 4 to 8 ribs with full space in between them .

The flowers of Neolloydia are regulate like funnels and can be white or pinkish in color . Inside the efflorescence , you could receive scales , felted areas , and sometimes even petite bristle . The fruits of these plants are round and have areoles on them . The semen are black and have small pit on their surface .

Neowerdermannia

Neowerdermannia is a small group of cactus with only two species . These plants have a round and spiky material body , similar to the Gymnocalycium genus . The flowers of Neowerdermannia grow near the top of the plant and have still tubes with scales , which can be either white or pink . The fruits of these plants are round and split open on their own .

The body of Neowerdermannia has rib , but they ’re not very decipherable and are divide into detectable bump predict tubercle . Small area called areoles are come up on top of these eminence , and they bring about up to 20 solid pricker . These spines can be curved or even hooklike .

Obregonia

Obregonia , also known as the Artichoke cactus , is a special cactus from Northern Mexico that many people are eager to have . You wo n’t find it in large plant nurseries , but you could easily find it in speciality cactus nurseries .

This cactus belongs to a genus that only has one specie , making it truly singular . It looks different compared to other cactus specie , so you’re able to well recognise it . The stems of the Obregonia cactus are single and flattened , with triangular hump called tuberosity . These tubercles are arrange in a volute rule , feed the works the coming into court of an globe artichoke . At the gratuity of the tubercles , there are small field call areoles . They have watery defenses and only a few lilliputian acantha . The flowers of Obregonia are shaped like funnel , and they are white with xanthous stamens . They bloom at the nitty-gritty of the top of the plant .

Opuntia

Opuntia is a type of cactus that can be found in many percentage of North and South America . It has spread all over the populace because people have bring in it to new piazza where it grows on its own and even becomes a bothersome weed . Opuntia is easy to place by its categorical stem segments called phylloclade , which stack on top of each other . These cladodes have flyspeck spine shout out glochid on their edges and open . Some Opuntia specie have big , sharp spines along with the glochids , while others only have glochids . These glochids may search diffused or fuzzy , but they can irritate if touched , so it ’s better to stave off them .

Opuntia flowers are commonly yellow , sometimes pinkish , and rarely bloodless . They have a cup conformation and do n’t have pipe like other blossom . Instead , they look like telephone extension of the phylloclad . When unexampled increase appears , it ’s hard to tell if it will be a bloom or a fresh cladode because they attend the same at first , often cover in cone - mould leaf that eventually come off . Some Opuntias produce fruit , which can turn bright red or stay fleeceable . The fruit of certain Opuntia varieties , called “ tunny , ” are juicy and heavy . People harvest them to make candy or jelly . In Mexico , young and bid phylloclade are also harvested and eaten as a veggie , known as Nopales .

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Oreocereus

Oreocereus is a type of cactus get in South America , kind of like a counterpart to Cephalocereus in the Northern Hemisphere . They look alike because they ’re unretentive and continue in thick white pilus or woollen . Some Oreocereus species have so much hair that you ca n’t see the shank underneath . But be careful , because even though they calculate gentle , they have keen spines stick out beyond the fleece .

People farm several Oreocereus species in garden because of their dramatic blanched hairy shank . They are often call “ Old Man Cactus ” or “ Old Woman Cactus . ” The stems have ribs and pass between little areas called areoles . Sometimes , these cacti produce flower , which are unremarkably bright crimson or orange and beautiful . The flower have a symmetrical shape and look similar to the genus Cleistocactus . The fruit of Oreocereus are round and fleshy .

Oroya

Oroya is a radical of plants that can be happen in the Andes mountains in Peru . They are small and have a barrel shape with many rib . On top of each rib , they have spines that are usually bright yellow or reddish - brownness , which makes them look amazingly prominent . These plants have only one stem and they do n’t grow very big , reaching up to 13 inch tall and 9 inch in diameter .

The prime of Oroya plants grow near the top , often forming a circle , and they orient straight up . The flowers can be smart yellow or brilliant pinkish - crimson . They are comparatively small , less than an in long , and have a proportionate configuration with out parts that curve rearwards . The fruits of these plants are small , circular , and sarcoid .

Ortegocactus

Ortegocactus is a character of cactus that was unwrap clean recently in the 1900s . It only grows in a little field of limestone in Oaxaca , Mexico . When these cacti start , they have unmarried fore that are not more than 2 inches wide . As they get older , they can form little cluster of multiple stem . The stems have brush up bumps on them called tubercles , which have bantam areas visit areoles on top . The tubercles are gray - white with dark tips . These plant life might look more like a blob than a peachy round ball , particularly when they lack piddle and get dehydrated .

The bloom of Ortegocactus are promising yellow and shaped like funnels on top of the stems . They have a green stain . One interesting lineament of this plant is its beautiful hoary - green skin , which bet porous and resembles real peel . However , as these flora get sr. , they can uprise rust - colored spots on them , even if they are well taken care of by experienced raiser .

Pachycereus

Pachycereus is a chemical group of cacti known for their bombastic size . One species can grow as tall as 82 feet ! Although not all Pachycereus coinage are that huge , they all have a columnar form and look like Tree or shrubs with self-aggrandising branches .

The stems of these cacti have rib and can be either blue - green or vivid unripe . When they are little , they unremarkably have lots of spines for tribute , but as they grow old , the spines become trim down or even go away . Some character of Pachycereus have a special area called a pseudocephalium , which has very dense spine and is where the flowers come from .

The flower of Pachycereus are modest tubes or funnel shape that can be up to 4 inches long . The tube-shaped structure have scales and can seem scanty , blurred , or spiny . The fruit of these cacti are fleshy and open up up when they ’re ready .

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Parodia

The cacti in the Parodia genus are very pop among works growers . They are easy to take care of and have interesting stem and spines . These cacti also blossom with bright and colorful flowers , which adds to their ingathering . Plants in this mathematical group can be pear-shaped or curt cylinder , either abide alone or growing in clusters . Their stem often have rib , but some can have bumpy tubercles instead . The thorn on these cacti can be slender and sparse or impenetrable and stiff .

The flower of Parodia species grow from muzzy bud at the top of the cactus . The flowers are cup - influence and point straight up . Generally , other cacti affiliated with unlike groups have yellow flowers that are around 1 to 2 inches wide . Parodia specie , on the other hand , often have orangish to red flowers that can be as lowly as a quarter column inch . However , there are exceptions to these shape , and some species may differ .

One name feature of these cacti is their marked stigma , which is often a different color from the sleep of the blossom and has long lobes . This can aid identify them . The yield of Parodia cacti are fuzzy , sometimes spiny , and unremarkably dry . They stay committed to the plant for a longsighted clock time , even after minor sinister come start to pass out . The seeded player can change and can cause disagreements among experts when classify these cacti .

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Pediocactus

Pediocactus is a mathematical group of cacti known as hedgehog cacti . They belong to a big mathematical group called the genus , which includes about 6 to 11 different species , depending on who you ask . However , there are other cacti from dissimilar genus like Echinocereus and Echinopsis that are also called hedgehog cacti .

These Pediocactus plants have singular features that make them resemble hedgehog . They have spines that flummox out all over their bodies , like to the spiky quills of a hedgehog . The act of species in this group can vary look on unlike experts and sources .

Pelecyphora

Pelecyphora is a radical of cacti with just two metal money . These cacti add up from Mexico . One interesting affair about Pelecyphora is that it has some medicative properties and may have been used for its psychoactive essence , like another cactus call in Lophophora williamsii . It is sometimes referred to as “ Peyotillo ” .

Peniocereus

Peniocereus plant , find out in the Southwest United States and Mexico , are stick - comparable plants that straggle on the footing . They blend in with shrubs , making them hard to note as they look like dead branches . Some species of Peniocereus have huge underground tubers that can weigh up to 70 pounds or more !

Interestingly , the flush of these plant are quite stunning and well catch your eye , unlike their plain stem . Most of the flowers are white , bloom at night , and have recollective , slight tubes . They also have obtrusive bumps with spines or bristle . Sometimes , these flowers even give off a pleasant fragrancy . The fruits that grow on these plants are usually tumid , juicy , and contain pitch-dark semen surrounded by white or red fruit pulp magazine .

Pereskia

The genus Pereskia is a group of cacti that look very dissimilar from other cacti . While they do have spinal column and some similar lineament to cacti , they stand out because they are more like tree or shrub from tropical regions .

These unique plants have a solid trunk and leg covered in flat leaves . Some people argue that not all cacti are succulent because of Pereskia , but these industrial plant still have some succulent constituent , like their source or stems , and they all have thicker , rubbery leaves . These folio are juicy , standardised to the foliage of a Portulaca industrial plant , rather than slender and papery like those of an Oak or Maple tree .

In their natural habitat , you might have a heavy time spot these plant . They acquire among other trees and shrub , blend in with their environs . However , when they flower , they can be very bright and beautiful . The private bloom look like idle roses , which is why they are sometimes called Rose Cactus .

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Pierrebraunia

These unique works have a ribbed appearance and short columns . They get in Brazil and are only found in small numbers in their natural home ground . These plants grow beautiful brilliant - pink tube - shaped flower that grow near the tips of their stems .

Pilosocereus

The Pilosocereus genus , previously have it off as Pilocereus , get its name changed in 1954 because of a disagreement in the botanic appointment rule . The sometime name referred to the hirsute parts , call areoles , found on the stems , particularly in the mature florescence sections . Many coinage within this genus have sensational blueish - coloured stems , although some may be greenish rather .

These works can either be bushy or uprise into tall tree - like structures . Their flowers are tube - shape , and the flowered tubes and unopened bud often have a vivacious blue color . The outer parts of the flower , called perianth , are usually white or pinkish - white and have many stamen and a style that sticks out . The flowered tubes are suave and do n’t have any spines . Interestingly , these plants rely on squash racket for pollination . Their fruit are voluptuous and contain seeds surrounded by mush .

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Polaskia

The Polaskia genus consists of two Sir Herbert Beerbohm Tree - like cacti found in Southern Mexico . These plants have a marvelous trunk that branch out as they grow sometime , with many branches extend from a short base . The stems have rib and the spaces between them are not very mysterious . Along these ribs , you’re able to find areoles space around an inch apart . The spines on these cacti are short and inflexible , with about 8 to 10 spine in a circular arrangement around the areole , and sometimes there is a unmarried prickle in the middle . However , it ’s authoritative to note that mature plants may not have any spines at all .

The flowers of Polaskia cacti are like wide - unfastened cups and can be either pinkish - white or yellow - green in color . Some flower have thorn , while others do not . The fruits of these cacti are small and contain fleshy Charles Edward Berry .

Pseudorhipsalis

Pseudorhipsalis is a type of plant life that is sometimes aggroup with Disocactus . It has an interesting growth normal . Initially , it stands tall and upright , but as it grows , it start to get behind along the basis . This industrial plant is called epiphytic , which mean it grows on other works without harm them . Pseudorhipsalis has many branches and elongated theme . Its leaves are flat and have jagged edge . One notable feature of Pseudorhipsalis is that it give rise a good deal of prime .

Pterocactus

Pterocactus stands out in the cactus fellowship due to its extraordinary blossom . These flower are embedded so deeply in the stems that the integral stem seems to be one long floral subway system . When a flower flower , it emerges straight from the end of the theme . This unique process stops the ontogeny of the stem , and a new stem get from the side , finally producing another flower .

If the flower is successful , the end of the stem turn transforms into a dry yield . Eventually , this fruit opens up , revealing seeds that have wide wings . These wings are quite distinct and uncommon within the cactus syndicate . Interestingly , these seed resemble the seeds of an Elm tree . Additionally , Pterocactus species have bombastic tuberous roots that go on to grow , while the stems may shrink aside and be replaced by young ones over time .

Pygmaeocereus

Pygmaeocereus is a singular genus of cacti know for its little , cylindrical stems that grow in bunch . These stems have shallow , rocky ribs with legion spines that are not acute or aggressive . The prime of Pygmaeocereus bloom at Nox and are livid in color . They appear at the ends of long , slender flowered tubes that have scales and are covered in tiny hair .

In their natural environment , Pygmaeocereus species can only be found in Peru , specifically in the muzzy area along the coast . Although these cacti are not commonly spring up for commercial-grade purposes , they are care for by consecrate cactus collectors who apprise their unique feature film .

Quiabentia

Quiabentia is a unequalled cactus genus that includes only one species . This cactus grows in a way that resemble a typical deciduous tree . It has a undivided proboscis with ramification that form a crown at the top . The branches are covered in broad , monotonous leaves that have a slightly lush grain .

Quiabentia shares some similarity with other cacti like Pereskia orPereskiopsis . However , it is believed to be more standardised to Pereskiopsis because it has modest , hair - similar structures called glochids on its areoles . The flower of Quiabentia are either red or pink and they bloom at the tip of the stems . These flowers have spines and glochids on their floral tubes . The fruit of this cactus are fleshy and take magnanimous , round seed .

Rebutia

Rebutia is a pop genus of cacti that many mass enjoy mature . Some metal money from this genus are even raise and sold on a large scale in garden centers worldwide . These plant are small and have a rounded or flattened shape . They often grow in modest clustering . The stems of Rebutia cacti usually have bumpy arena call tubercles , but the ridges between them are not always well - defined . One interesting thing about Rebutia cacti is that their acantha can diverge widely , even among plant life of the same coinage .

These cacti are known for their vigorous growth and they often make many beautiful peak . These heyday are comparatively large and have eye - catching , promising vividness . They go forth from specific spot on the cactus called areoles , usually on the lower part of the stems . The flowers of Rebutia cacti have a funnel - similar condition , with floral tubes that sometimes expand and curve upward over the works . These flowered tubes have scales and may even have petite hairs , but they do n’t have spine like the respite of the cactus .

Rhipsalis

Rhipsalis is a eccentric of cactus that is known as Mistletoe cactus because of its unparalleled growth habit . These cacti are epiphytic , which mean they develop on other plants without harming them . Most Rhipsalis species are found in Brazil . The name “ Rhipsalis ” comes from an Ancient Greek word think “ wickerwork , ” which describes the plants ’ appearance and how they produce .

Schlumbergera

This is a small group of cacti know worldwide as the “ Christmas Cactus ” . However , not all species in this group are view as such . The true “ Christmas Cactus ” is actually a hybrid make in Europe and has been widely spread through cuttings for at least 150 geezerhood . Its proper name is Schlumbergera x buckleyi .

These cacti have stems that depend like leaves grow from end to end , or in two species , the radical are rounded and covered with small sticker . The flowers are beautiful and have curl flower petal . They can be bright red or pinkish and sometimes have two people of color . The fruits of these cacti are small berries .

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Sclerocactus

Plants in this group grow naturally in the Southern United States and Northern Mexico . They survive in rugged conditions and can be come up in small populations . It ’s interesting to note that these plant can handle different types of atmospheric condition . However , despite their ability to flourish in the state of nature , they are quite challenging to grow at home . Those who do win often use a specific character of territory without any organic materials .

These plants are generally belittled and have a rounded or cylindrical shape with jolting ribs . They usually have many acantha , admit a hooked central prickle . The blossom farm at the top of the works and confront upwards . They amount in unlike colors like pink , yellow , greenish , white , and even brown . The fruit are standardized to those of another cactus called Ferocactus , but they have small tuft of woolen in the scales .

Selenicereus

This group of plants is hollo Selenicereus , named after the Greek moon goddess Selene because their flowers flower at night . These plants are similar in that they are vine - same climber . They mostly grow on trees but can also be found on rocks . The stems of these industrial plant can be round , angled , or even categoric and jagged like fern folio . Some species have no prickle , while others have tiny hairsbreadth - like vertebral column , and a few have impregnable protective covering . They also have roots along the stem that help them mount .

These plants have beautiful flowers that open up at night and are quite awe-inspiring . Some can be orotund than 12 inches in diameter . Most of them have long , lithesome tubes with scales , hairs , bristle , or spine . The fruits they produce are sarcoid and have spine that do n’t fall off easily . The flower are mostly white , but some have red or xanthous parts on the outside .

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Stenocactus

There are several coinage of cacti in the Stenocactus group that people enjoy grow . These plants are round and quell comparatively small , make them leisurely to take precaution of in smoke . They are known for their ability to grow and bloom chop-chop , often being one of the first cacti to flower in the springiness . What take a leak them even more interesting is that their ribs resemble fin , giving them a coral - like coming into court as if they belong under the ocean .

These cacti ordinarily have spines that are detectable but not consuming , take into account you to see the stem . The flowers produce at the top of the plant and are often blank with a dark pink stripe in the centre , although sometimes they can be evidently creamy white . These cacti are native to the Chihuahuan desert in Mexico , where they course thrive .

Stenocereus

Stenocereus is a mathematical group of cacti that are mostly tumid , shrubby , or tree diagram - like with magniloquent , columnar shapes . They can be find in many position , including the Southern United States , Mexico , Central America , the Caribbean , and Northern South America .

These cacti have cylindric stems with many noticeable ribs . The rib have belittled grooves where the spines grow . The flowers of Stenocereus are inadequate and have a wide , funnel - like shape . The outer petals curl backward , and you could see the long stamen at bottom . The tubes of the flowers are cover in pricker , but these spines devolve off as the fruit begins to develop .

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Stetsonia

The Stetsonia genus only has one species , and it ’s a big cactus that grows like a tree , with a warm luggage compartment and quite a little of arm . It is one of the most popular big cacti that people grow . It is commonly project in stores when it ’s still small and kept in commode instead of being planted in landscape . Because of this , it ’s uncommon for these cultivated plants to have the fortune to blossom . However , one singular feature of this cactus is its very longsighted spine , which is why it is often called the “ Toothpick Cactus ” .

The bow of Stetsonia have many shallow ridge and sharp spines . As the cactus grow former and bigger , it may start branching out . The flush of this cactus are white and have a funnel shape - alike shape . They spread out at night and appease open during the day . This genus of cactus is found in many places in southern South America .

Strombocactus

Strombocactus disciformis is a special kind of cactus that is quite rare . It has a substantial , roundish root word that looks like a turnip and is covered with modest , spirally arranged bulge . These swelling have spines on top . The stem itself is only about 3.2 inches magniloquent and is a bluish - gullible vividness with a soupcon of gray .

Tephrocactus

Tephrocactus is a modest group of cacti find only in Argentina . One interesting matter about these cacti is that they have glochids , which are diminutive spines that stick to your skin . However , in Tephrocactus , these spines are unparalleled because they are sunken into the areoles , which are extra spot on the cactus where the spine grow . The spines can be long and thin like needles , or they can be thin and papery , or sometimes they may not be there at all .

The stems of Tephrocactus are made up of separate segments that grow in a distinct blueprint . Unlike other cacti like the Opuntia with their flat pads , the segment of Tephrocactus are round in shape . They can be short cylinders , egg - shaped , or even entirely spherical . These segment are arranged in a slightly zig - zagged stack . The flowers of Tephrocactus are mostly white , but some can be pinkish , yellow , or even flushed in one metal money .

Thelocactus

Thelocactus is a group of around twelve specie that can mostly be found in the Chihuahuan desert in Texas and Mexico . These plants have humble , rounded , or short cylindrical stems . Sometimes they grow alone , and other times they take shape lowly clusters . The stem have ribs that are bumpy and often have strong , phonograph needle - like spines . In certain coinage , these spines are even cut like hooks .

The flowers of Thelocactus can be white , pink , or yellowish , and sometimes they have a combination of colors in mob or stripes . Compared to the size of the stem , the flowers are usually quite big . They bloom at the top of the works and can even go on blooming throughout the summer .

Tunilla

Tunilla is a small chemical group of cacti from South America . These cacti were not commonly spring up in the past , but now more masses are becoming interested in them . The stems of Tunilla can either be matte with joined paddle or round segment . They have special spots call areoles that hold bantam spines and glochids , which are like small stickers . The blossom of Tunilla are colorful , ranging from red to yellow and all the vibrant shades in between .

The fruits of Tunilla have a single pussy and open up to release their seeds . you could obtain these cacti in countries like Argentina , Bolivia , Chile , and Peru .

Turbinicarpus

This group of plants is called Turbinicarpus , which come from a compounding of Latin and Greek discussion referring to their top - mold stems . These cacti have minuscule base that are usually partly buried in the dirt where they produce by nature . When grown as houseplants , they often have round stanch with noticeable bumps . The acantha on these works can look quite unlike look on the species . The flowers uprise at the top of the stem and can be white or dark pinkish in color .

Uebelmannia

There are three types of plants from Brazil call Uebelmannia . These plant have stanch that are circular or cylindrical and have rib with spines on them . The skin of the plant feels rough and can be bright green , waxy - grey , or darkpurple . The spines on the plants are usually bloodless , gilded , or black and are find in a continuous line on the ribs . These special features make these plant life look very unique and beautiful . The flowers of these plants are belittled icteric funnels that grow near the top of the stem . Although the flowers are not very extra compared to other cacti , the plants themselves are quite spectacular because of their appearance .

Weberocereus

Not many mass grow plant from the Weberocereus family because they are rarefied and not unremarkably found in garden . These plant are usually found in Central America , and some species can be found in Mexico and Ecuador .

The plants from this family have long , vine - like stem and they grow aerial solution as they rise . The stems can be round , slant , or flatten in cast . There are only a few spinal column or sometimes no spines at all on these plants . The flowers of these plants bloom at dark and they are shaped like funnels . They are mostly snowy , but some can be pink or yellowish .

Yavia

Yavia is a type of cactus that was attain in 2001 . It dwell in a problematical and dry environment with rocky soil , mellow up at over 12,000 feet acme . This cactus is pocket-size and round , usually with only one root , although it can sometimes acquire in clump if it ’s ingraft . you’re able to see some lightheaded ridges on its surface , but what stand out are the row of fuzzy - bloodless spots call areoles , which have midget reddish - brown vertebral column . The flowers of this cactus are pink and have a short , thick thermionic tube .

What Type of Plant is a Cactus?

Cactus belongs to the succulent grouping , plant that can absorb and stack away prominent amounts of water in their plant consistency and root . In this room , they can go without body of water for extremely long periods . The thorns also have a like social function . They can absorb dew and thus bring home the bacon superfluous wet .

The cactus is from the works family of the Cactaceae . There are about 300 genera and 3,000 species . The family has many well - known species because they are sluttish to keep alive as a houseplant and are seen as decorative .

The plants can be sort out harmonise to their form . There are the disc cast , the spherical shape , and the columnar contour . Certain cactus type can become very large , while others remain very small .

There are many other types of succulents in the humans , but they miss areoles , places where the thorns ( spikelet ) uprise . This is characteristic of cacti and family characteristics .

Most cacti are aboriginal to North , Central , and South America . They occur there in deserts and steppes , on high mountain slope , and in jungles . They are masters of adapting to aliveness conditions . A pocket-size number of species pass off in tropic rainforests . They then maturate as aerophyte on tree branches where , despite the high rainfall , due to the speedy menses of water , dry condition predominate .

When you ’re repotting a cactus , it ’s really gentle to end up pricking yourself multiple times , which can risk you dropping and damaging your works . A pro tip is to employ a pair ofhigh lineament pliersor very thick gloves to keep you away from those spines and give you the control you need to take care of your cactus .

Sources : https://en.wikipedia.org / https://cactiguide.com / https://www.llifle.com/