Echinocereus triglochidiatus | |
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Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Order: | Caryophyllales |
Family: | Cactaceae |
Subfamily: | Cactoideae |
Genus: | Echinocereus |
Species: | E. triglochidiatus |
Binomial name | |
Echinocereus triglochidiatus | |
Synonyms | |
List
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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. [3]
A number of varieties of this highly variable cactus species are known, but not all are universally recognized. In general, it is a mounding cactus, forming bulbous piles of spherical to light to bluish green cylindrical stems, forming cushions over 1 meter in diameter with up to 500 shoots. Stems range from 5 to 40 cm long and 5 to 15 cm in diameter withfive to twelve ribs that are either straight-edged or tuberculated. It is densely spiny and somewhat woolly. The one to four central spines are similar to the peripheral spines, with up to 22 round or flattened, yellow to dark marginal spines that can be 1 to 7 cm long, though some may be absent. The showy flower is a funnel-shaped bloom up to 8–9 cm (3.1–3.5 inches) wide and bright scarlet red to orange-red tepals. A thick nectar chamber and many thready pink stamens are at the center of the corolla. [4] The fruits are spherical to obovate, slightly pink or reddish, and lose their thorns over time. [5] The chromosome count is 2n = 22. [6]
There are two recognized subspecies: [7]
The kingcup cactus's taxonomy is a topic of contention. Varieties of the E. triglochidiatus often vary dramatically in their stems and spines, with closely related combinations producing radically different looking plants. Many varieties have little or no documented natural occurrences, but were observed in cultivation. [8]
Plants in the western portion of the range of E. triglochidiatus were formerly considered E. triglochidiatus var. mojavensis. This taxon included both the California curly-spined plants and the straight-spined plants that reside in Arizona, Utah, and western Colorado. The straight-spined varieties were called E. triglochidiatus var. melanacanthus. Those in the eastern portion of the distribution were called E. triglochidiatus var. triglochidiatus. They have fewer and larger spines. [9] These varieties became their own distinct subspecies, and only the E. triglochidiatus var. triglochidiatus is a recognized variant. [4]
One variety, E. t.arizonicus or the Arizona Hedgehog cactus, is federally listed as an endangered species in the United States. It is limited to the intersection of Arizona and New Mexico in the United States with Mexico. This variety is sometimes included within Echinocereus coccineus . Conversely, the Integrated Taxonomic Information System lists the variety as its own species, Echinocereus arizonicus. [10] [11]
All the varieties of the E. triglochidiatus can be found in the Southwestern United States. It lives in various upland, mountain, and dessert climates throughout Arizona, New Mexico, Colorado, California, Texas and Northern Mexico at elevations between 150 to 3500 meters. [8]
The name comes from the Greek tri- and glochidium , meaning "three glochids." [12]
Although it is favored by hummingbirds for pollination, its flowers are not specialized for hummingbird pollination, and it is pollinated by bees as well. [13] [4]
Seeds are dispersed from the fruits of mature plants. While ants occasionally take fruit to their mounds, leaving seeds above to sprout - feeding by rodents and lagomorphs are the most common means of dispersal. New sprouts of the cactus thrive under the shade of the fourwing saltbush, which provides protection from animals and desiccation. [4] [14] New growth of E. triglochidiatus is clustered around very old specimens, atop the remains of the saltbushes that served as a nursery. Rodents occasionally kill the plants by digging nests underneath, destroying roots. [15]
Echinocereus is a genus of ribbed, usually small to medium-sized, cylindrical shaped cacti, comprising about 70 species native to the southern United States and Mexico in very sunny, rocky places. Usually the flowers are large and the fruit edible.
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.
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.
Ferocactus cylindraceus is a species of barrel cactus which is known by several common names, including California barrel cactus, Desert barrel cactus, compass barrel cactus, and miner's compass. It was first described by George Engelmann in 1853.
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 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.
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.
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.
Echinocereus pectinatus is a species of hedgehog cactus.
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 rigidissimus, commonly known as the Arizona rainbow cactus or rainbow hedgehog cactus, is a solitary-growing cactus that rarely branches or offsets with age.
Echinocereus relictus is a species of hedgehog cactus commonly known as “purple-spined hedgehog cactus”.
Echinocereus bonkerae, also known as pinkflower hedgehog cactus, Bonker hedgehog, or short spined strawberry cactus, is a species of hedgehog cactus.
Echinocereus websterianus, commonly known as the San Pedro Nolasco hedgehog cactus or Webster's hedgehog cactus, is a species of cactus. It is named after American philanthropist Gertrude Webster, who cofounded the Desert Botanical Garden in Phoenix, Arizona.
Echinocereus ferreirianus is a species of cactus native to Mexico.
Echinocereus bakeri, commonly known as Baker kingcup cactus, is a species of cactus native to the Southwestern United States.
Echinocereus yavapaiensis is a species of cactus native to Arizona.