Mammillaria is one of the largest genera in the cactus family (Cactaceae), with currently 200 known species and varieties recognized. Most of the mammillarias are native to Mexico, while some come from the Southwestern United States, the Caribbean, Colombia, Guatemala, Honduras and Venezuela. The common name "pincushion cactus" refers to this genus and the closely-related Escobaria.
Strombocactus disciformis is a rare species of cacti and the only species of the genus Strombocactus. The plant originates from Central and Northeast Mexico.
Mammillaria duwei is a species of flowering plant in the cactus family. It is endemic to Mexico, where it occurs only in the state of Guanajuato. It is known from only one location. It is known commonly as the biznaguita.
Mammillaria herrerae is a species of plant in the family Cactaceae. It is endemic to Mexico where it is confined to Querétaro. It thrives in a semi-desert shrubland habitat. Common name is golf ball cactus. It is threatened by habitat loss and illegal collection. In a 20-year period over 95% of the species population was illegally collected or sold. Mammillaria herrerae has an IUCN rating of critically endangered. Due to its specific growing conditions, there is a challenge in propagating. Many studies are being done to determine best growing conditions, through related species.
Mammillaria luethyi is a species of cactus endemic to the Mexican state of Coahuila. The plants are miniature, shaped like balls and covered with tiny white spines and, throughout the summer, large magenta flowers.
Mammillaria painteri is a species of plant in the family Cactaceae. It is endemic to Mexico. It is usually found near, but not limited to, San Juan del Rio, Guanajuato. It is commonly referred to as the biznaguita in Spanish. It is also known by many to be synonymous with Mammillaria crinita subspecies crinita. It was evaluated and added to the IUCN Redlist in 2002 as data deficient. The causes of this species' endangerment or threats to its well-being are not clear.
Mammillaria weingartiana is a species of plant in the family Cactaceae. It is endemic to Nuevo León state, Mexico.
Mammillaria zeilmanniana is a species of cactus. It is endemic to Mexico, where it is known only from Guanajuato. It grows in a narrow canyon usually near water where there is high humidity, its total population is fewer than 250 individuals. It is threatened by illegal collection for the horticultural trade. Recent studies link this species to Mammillaria crinita.
Mammillaria rekoi is a species of cactus endemic to Mexico.
Mammillaria bombycina, the silken pincushion cactus, is a species of flowering plant in the family Cactaceae.
Mammillaria plumosa, the feather cactus, is a species of flowering plant in the family Cactaceae, native to Northeastern Mexico.
Mammillaria glassii is a species of cactus native to Mexico. It comprises two subspecies: M. glassii subsp. glassii and M. glassii subsp. ascensionis. In its natural habitat, high in the mountains, it often grows on rocky slopes in the shade. It is grown as an ornamental plant, appreciated for its dense spines and pink flowers, which are especially large in the subsp. ascensionis.
Mammillaria bocasana is a species of cactus in the subfamily Cactoideae. It is often sold as a "powder puff" cactus, and also as a "Powder Puff Pincushion." The plant is protected from collecting in the wild in Mexico.
Mammillaria vetula, the thimble cactus, is a species of nipple cactus in the subfamily Cactoideae. It is native to the Mexican states of Hidalgo, Guanajuato and Querétaro. Two subspecies are recognized M. vetula subsp. vetula and M. vetula subsp. gracilis. While the former is usually considered too plain to be grown as an ornamental plant, the latter is one of the most widespread mammillarias in cultivation.
Acharagma aguirreanum is a critically endangered microendemic cactus. It has a range of about one square kilometer in the calcareous semi-desert of the Sierra de la Paila in Coahuila, Mexico. Its population is estimated at less than 1000 individuals. Its only major threat is illegal collecting.
Mammillaria surculosa is a species of flowering plant in the cactus family Cactaceae, native to north eastern Mexico, where it occurs in extremely isolated patches at altitudes of 950–1,200 m (3,120–3,940 ft). It is registered as "Endangered" by the IUCN Red List. Growing to 10 cm (3.9 in) tall by 50 cm (20 in) wide, this tiny plant forms colonies of spiny stems with relatively large, lemon yellow flowers in spring.
Mammillaria laui is a species of cactus in the genus Mammillaria, native to Tamaulipas state in Mexico. A number of subspecies were described, occurring along an elevation gradient; these are no longer accepted. It is listed as Critically Endangered (CR) in the wild. As Mammillaria lauii it has gained the Royal Horticultural Society's Award of Garden Merit.
Echinocereus parkeri is a species of cactus native to Mexico.
Echinocereus schereri is a species of cactus native to Mexico.
Mammillaria mercadensis is a species of flowering plant in the cactus family (Cactaceae), native to north and west Mexico.
