Echinocereus viridiflorus | |
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Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Order: | Caryophyllales |
Family: | Cactaceae |
Subfamily: | Cactoideae |
Genus: | Echinocereus |
Species: | E. viridiflorus |
Binomial name | |
Echinocereus viridiflorus | |
Synonyms | |
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Echinocereus viridiflorus is a species of cactus known by the common names nylon hedgehog cactus, green pitaya, and small-flowered hedgehog cactus. It is native to the central and south-central United States and northern Mexico, where it can be found in varied habitat types, including desert scrub, woodlands, dry grasslands, and short-grass prairie. [3]
This cactus has a small spherical to ovoid, sometimes elongated or cylindrical in shape, stem 3 cm (1.2 in) to over 30 cm (12 in) tall and up to 1 to 9 cm (0.39 to 3.54 in) wide. The 6 to 18 ribs are clearly humps. It is mostly unbranched but it may occur in squat clusters of several branches. The body of the plant is ridged and lined with many areoles bearing spines. The spines may be red, yellow, white, purplish, or bicolored, sometimes with darker tips and are up to 2.5 cm (0.98 in) long. The 8 to 24 marginal spines are also red, cream or brown and up to 1.8 cm (0.71 in) long. The flower is up to 3 cm (1.2 in) long and has tepals in shades of yellowish, brownish, greenish, or occasionally red, with darker reddish midstripes. The tepals are thin at the tips. They are usually wide open, funnel-shaped and green to yellow-green. They are 2.5 to 3.0 cm (0.98 to 1.18 in) long and large in diameter. The fruits are spherical, green and heavily thorny. [3] [4]
The species is most closely related to E. chloranthus (Engelm.) Haage and E. russanthus Weniger. [5] These species share small seeds, basal nectaral tissue, and flowers that are yellow/brown and less than 4 cm in length.[ citation needed ]
The taxonomy within the species is uncertain, with authors recognizing several varieties which are sometimes treated as separate species. New molecular evidence suggests that E. viridiflorus subsp. cylindricus should be recognized as a distinct species because it has different morphology and different numbers of molecular autapomorphies than E. viridiflorus. One variety, var. davisii (sometimes called Echinocereus davisii), Davis' green pitaya, is federally listed as an endangered species. This taxon is very small, reaching no more than 3 centimeters tall. It becomes smaller when water is scarce, withdrawing under the ground, sometimes leaving just some spines sticking out. [6] [7]
Echinocereus viridiflorus is widespread in the US states of South Dakota, Wyoming, Colorado, Kansas, New Mexico, Oklahoma and Texas, as well as in the neighboring Mexican states of Coahuila and Chihuahua. It has yellow-green flowers. This rare variety is endemic to Brewster County, Texas, where it grows in beds of Selaginella in rocky soils of novaculite origin. [8] There was only one population known as of 1984, and it probably will not expand its range because it is limited to a specific mineral substrate. [7]
Selenicereus undatus, the white-fleshed pitahaya, is a species of the genus Selenicereus in the family Cactaceae and is the most cultivated species in the genus. It is used both as an ornamental vine and as a fruit crop - the pitahaya or dragon fruit.
Echinocereus engelmannii, the strawberry hedgehog cactus or Engelmann's hedgehog cactus, is a cactus commonly found in desert areas of the southwestern United States and the adjacent areas of Mexico, including the states of California, Nevada, Utah, Arizona, Baja California and Sonora.
Selenicereus megalanthus, synonym Hylocereus megalanthus, is a cactus species in the genus Selenicereus that is native to northern South America, where it is known, along with its fruit, by the name of pitahaya. The species is grown commercially for its yellow fruit, but is also an impressive ornamental climbing vine with perhaps the largest flowers of all cacti.
Echinocereus reichenbachii is a perennial plant and shrub in the cactus family. The species is native to the Chihuahuan Desert and parts of northern Mexico and the southern United States, where they grow at elevations up to 1,500 meters (4,900 ft). This cactus earned the Royal Horticultural Society's Award of Garden Merit.
Echinocereus triglochidiatus is a species of hedgehog cactus known by several common names, including kingcup cactus, claret cup cactus, red-flowered hedgehog cactus and Mojave mound cactus. This cactus is native to the southwestern United States and northern Mexico, where it is a resident of varied habitats from low desert to rocky slopes, scrub, and mountain woodland. E. triglochidiatus is the official state cactus of Colorado.
Acanthocereus tetragonus is a species of cactus that is native to Florida and the Lower Rio Grande Valley of Texas in the United States, Mexico, Central America, the Caribbean, and northern South America. The species is invasive in New Caledonia. Common names include night-blooming cereus, barbed-wire cactus, sword-pear, dildo cactus, triangle cactus, and Órgano-alado de pitaya (Spanish). The miniature cultivar is known as fairy castle cactus. It was originally described by Carl Linnaeus in 1753 as Cactus tetragonus but was moved to the genus Acanthocereus in 1938 by Pieter Wagenaar Hummelinck.
Cylindropuntia californica is a species of cholla cactus known by the common name snake cholla. It is primarily found in Baja California, Mexico and the southernmost part of California in the United States. It is characterized by a short, decumbent habit, yellow-green flowers, elongated stems, and short spines. It is mostly found in coastal sage scrub and coastal chaparral habitats, but two varieties in Baja California can be found in foothills and deserts. In California, variety californica is regarded as a rare and threatened plant, with a California Native Plant Society listing of 1B.1, in part due to its limited number of occurrences and threats from development. It formerly was considered to have a larger range due to the inclusion of Cylindropuntia bernardina within it as the variety parkeri.
Pelecyphora minima is a rare species of cactus known by the common names Nellie cory cactus, Nellie's pincushion cactus, birdfoot cactus, and others. It is a very popular species among cactus collectors. This is one reason why it is a highly endangered species in the wild today. This cactus is found only in Brewster County, Texas, in the United States, where there are three populations remaining near Marathon. The cactus is limited to one outcrop in the Marathon Uplift, where it grows in rocky novaculite soils. It was added to the endangered species list in 1979.
Pelecyphora sneedii is a rare species of cactus known by the common names Sneed's pincushion cactus and carpet foxtail cactus. It is endemic to the Chihuahuan Desert of the southwestern United States and northwestern Mexico. It is a small, variable cactus with a lengthy taxonomic history, and is often subdivided into a number of subspecies or varieties. It is usually found on steep, rocky habitats, primarily of limestone geology, in desert scrub or coniferous forest. A species of conservation concern, P. sneedii faces threats from poaching, urban encroachment, and wildfires.
Echinocereus chisoensis is a rare North American species of cactus known by the common name Chisos Mountain hedgehog cactus, native to the Chihuahuan Desert of northern Mexico and the south-central United States.
Echinocereus fendleri is a species of cactus known by the common names pinkflower hedgehog cactus and Fendler's hedgehog cactus. It is named in honor of Augustus Fendler.
Echinocereus dasyacanthus is a member of the cactus family, Cactaceae. It is one of about 2000 total species belonging to this family. The cactus is commonly known as Texas rainbow cactus because of the subtle rings or bands of contrasting colors along the stem of the plant. Not all Texas rainbow cacti have the "rainbow" coloration on their stems. Another common name is spiny hedgehog cactus.
Sclerocactus sileri, the Siler fishhook cactus, is a rare and very small cactus found mostly in mineral-rich desert areas of intermediate elevations, notably in the American states of Utah, Nevada, and northern Arizona.
Echinocereus stramineus is a species of cactus, with stramineus meaning made of straw. There are various common names such as strawberry cactus, porcupine hedgehog cactus, straw-color hedgehog, and pitaya. The straw-colored spines distinguishes this particular plant from other Echinocereus. The aged spines may turn white in color and are very fragile.
Echinocereus berlandieri is a species of hedgehog cactus. Its range includes most of South Texas, and is commonly found along the Nueces River and the lower Rio Grande.
Echinocereus arizonicus is a species of cactus native to the Chihuahuan Desert region of Chihuahua, southwestern New Mexico and southeastern Arizona, as well as in the Superstition and Mescal Mountains of Central Arizona at elevations between 1400 to 1900 meters.
Cochemiea conoidea, common name Texas cone cactus or Chihuahuan beehive, is a species of cactus native to southern United States to central Mexico.
Echinocereus coccineus is a species of hedgehog cactus. Its native to Northern and Central America. It grows on full sun, in sandy or rocky well-drained soil. It can survive in hardiness zones 8–11.
Echinocereus bonkerae, also known as pinkflower hedgehog cactus, Bonker hedgehog, or short spined strawberry cactus, is a species of hedgehog cactus.
Echinocereus enneacanthus is a species of flowering plant first described by George Engelmann.