Echinomastus mariposensis NatureServe Explorer Species Reports — NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants, animals and ecological communtities of the U.S and Canada. NatureServe Explorer provides in-depth information on rare and endangered species, but includes common plants and animals too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.
ITIS Reports — ITIS (the Integrated Taxonomic Information System) is a source for authoritative taxonomic information on plants, animals, fungi, and microbes of North America and the world.Description: Echinomastus mariposensis is a small, rounded cactus with single stems commonly about the size of a golf ball, but may grow to about 10-15 cm tall, and 8 cm in diameter at maturity. The plant has a grayish appearance overall, and on closer inspection, delicate, brown-tipped central spines can be seen arising from the many-spined tubercules
FWS Digital Media Library — The U.S. Fish and Wildlife Service’s National Digital Library is a searchable collection of selected images, historical artifacts, audio clips, publications, and video.Echinomastus mariposensis is a rare species of cactus known by the common names Lloyd’s fishhook cactus, golfball cactus, silver column cactus, and Mariposa cactus. It is native to a small section of territory straddling the border between Brewster County, Texas, in the United States and the state of Coahuila in Mexico. It has been federally listed as a threatened species in the United States since 1979.