| Stenocactus | |
|---|---|
 | |
| Stenocactus sp. | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Order: | Caryophyllales |
| Family: | Cactaceae |
| Subfamily: | Cactoideae |
| Tribe: | Cacteae |
| Genus: | Stenocactus (K.Schum.) A.Berger [1] |
| Species | |
See text | |
Stenocactus is a genus of cacti in the Cactaceae family. [1]
The following genera have been brought into synonymy with Stenocactus:
| Image | Scientific name | Distribution |
|---|---|---|
 | Stenocactus coptonogonus (Lem.) A.Berger | Mexico (Guanajuato, Hidalgo, San Luis Potosí, Zacatecas ) |
 | Stenocactus crispatus (DC.) A.Berger | Mexico (Oaxaca, Puebla, Zacatecas) |
| Stenocactus hastatus (Hopffer ex K.Schum.) A.Berger | Mexico (Hidalgo) | |
 | Stenocactus multicostatus (Hildm.) A.Berger | Mexico (Chihuahua, Coahuila de Zaragoza, Durango) |
 | Stenocactus obvallatus (DC.) A.Berger | Mexico (Distrito Federal, Mexico) |
 | Stenocactus ochoterenanus Tiegel | Mexico (Guanajuato, Querétaro de Arteaga) |
 | Stenocactus phyllacanthus (Mart. ex A.Dietr. & Otto) A.Berger | Mexico (Guanajuato, Hidalgo, San Luis Potosí, Zacatecas) |
| Stenocactus rectispinus C.Schmoll | Mexico | |
| Stenocactus sulphureus (A.Dietr.) Bravo | Mexico (Hidalgo) | |
 | Stenocactus vaupelianus (Werderm.) Backeb. & F.M.Knuth | Mexico (Hidalgo) |
In 1984, the International Organization for Succulent Plant Study set up a working party, now called the International Cactaceae Systematics Group, to produce a consensus classification of the cactus family, down to the level of genus. Their classification has been used as the basis for systems published since the mid-1990s. Treatments in the 21st century have generally divided the family into around 125–130 genera and 1,400–1,500 species, which are then arranged in a number of tribes and subfamilies. However, subsequent molecular phylogenetic studies have shown that a very high proportion of the higher taxa are not monophyletic, i.e. they do not contain all of the descendants of a common ancestor. As of August 2023, the internal classification of the family Cactaceae remained uncertain and subject to change. A classification incorporating many of the insights from the molecular studies was produced by Nyffeler and Eggli in 2010.
The Cactoideae are the largest subfamily of the cactus family, Cactaceae. Around 80% of cactus species belong to this subfamily. As of August 2018, the internal classification of the family Cactaceae remained uncertain and subject to change. A classification incorporating many of the insights from the molecular studies was produced by Nyffeler and Eggli in 2010. Various revisions have been published since, e.g. to the tribe Hylocereeae and the tribe Echinocereeae. Classifications remained uncertain as of March 2019.
Stenocactus pentacanthus is a cactus native to Central Mexico. It can grow to 8 cm in diameter. The plant is greyish-green in colour with 30 to 40 wavy-edge ribs with few areoles. Its flowering period is normally during spring. These flowers can grow to 2 cm long. The flowers are whitish with a pale purple mid-stripe. They enjoy full sun and need a minimum temperature of 10 °C (50 °F).
In botany, succulent plants, also known as succulents, are plants with parts that are thickened, fleshy, and engorged, usually to retain water in arid climates or soil conditions. The word succulent comes from the Latin word sucus, meaning "juice" or "sap".
Brain cactus may refer to:
