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Coryphantha ramillosa is a rare species of cactus known by the common names bunched cory cactus and whiskerbush. It is native to the border region between Texas in the United States and Coahuila in Mexico. Because it was believed to be rare and threatened by a number of processes, it was federally listed as a threatened species of the United ...
The cactus' natural habitat is the Chihuahuan desert scrub, where it grows in mats of Selaginella in rock crevices. [3] It occurs in association with Echinocereus viridiflorus var. davisii, another cactus variety on the endangered species list. [5]
It typically grows to about 6 to 10 centimeters in diameter, growing to 50 cm (20 in) tall, it is a perennial with succulent stems with a blue or gray-green body that is somewhat felty at the top and often thorny. The cactus has 8 to 13 straight or twisted ribs, each divided into crookedly truncated cusps up to 1.5 centimeters high.
It is named for the Mariposa Mine, a mercury mine [4] in Texas, where it was first discovered. [5] It was described in 1945. [4] The plant grows in Chihuahuan Desert scrub amongst other plants such as beaked yucca (Yucca rostrata), creosote (Larrea tridentata), and lechuguilla (Agave lechuguilla), as well as many other cacti. [3]
Creosote and similar shrubs act as nurse plants for the cactus. [7] The "incredibly spectacular" pink flowers of this plant have made it a target for cactus collectors, who are a major threat to the survival of the species. [8] There are only about 1000 individuals existing. [5] known only from alluvial flats in desert scrub habitat. The soil ...
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.