Cylindropuntia

Chollas
Cylindropuntia kleiniae
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Core eudicots
Order: Caryophyllales
Family: Cactaceae
Subfamily: Opuntioideae
Tribe: Cylindropuntieae
Genus: Cylindropuntia
(Engelm.) F.M.Knuth
Species

Numerous, see text

Cylindropuntia is a genus of cacti (family Cactaceae), containing the chollas. They were formerly treated as a subgenus of Opuntia but have now been separated based on their cylindrical stems ('Opuntia' have flattened stems) and the presence of papery epidermal sheaths on the spines ('Opuntia' have no sheaths).[1] A few species of mat or clump forming opuntioid cacti are currently placed in the genus Grusonia.

There are about 35 species of Cylindropuntia native to the southwest and south central United States, Mexico and the West Indies, The Flora of North America recognizes 22 species. Some species have been introduced to South America (Chile, Ecuador, Peru) and South Africa. [2]

Selected species

References

  1. ^ Pinkava, D. J. 1999. Cactaceae cactus family: Part 3. Cylindropuntia.... J. Arizona-Nevada Acad. Sci. 32: 32-47.
  2. ^ Flora of North America Editorial Committee, eds. 1993+. Flora of North America North of Mexico. 16+ vols. New York and Oxford.