- Cylindropuntia
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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.KnuthSpecies 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
- Cylindropuntia abyssi
- Cylindropuntia acanthocarpa - buckhorn cholla
- Cylindropuntia alcahes
- Cylindropuntia arbuscula - pencil cholla
- Cylindropuntia bigelovii - teddy-bear cholla
- Cylindropuntia californica
- Cylindropuntia caribaea
- Cylindropuntia cholla
- Cylindropuntia cylindrica
- Cylindropuntia echinocarpa - silver cholla
- Cylindropuntia fulgida - jumping cholla or hanging chain cholla
- Cylindropuntia imbricata - cane cholla, tree cholla
- Cylindropuntia kelvinensis
- Cylindropuntia kleiniae
- Cylindropuntia leptocaulis - desert Christmas cactus, Christmas Cholla, tasajillo
- Cylindropuntia mortolensis
- Cylindropuntia munzii
- Cylindropuntia prolifera
- Cylindropuntia ramosissima - diamond cholla
- Cylindropuntia rosea
- Cylindropuntia schottii - dog cholla
- Cylindropuntia spinosior - Tasajo cholla
- Cylindropuntia stanlyi - devil cholla
- Cylindropuntia tunicata
- Cylindropuntia × tetracantha
- Cylindropuntia versicolor - staghorn cholla
- Cylindropuntia × vivipara
- Cylindropuntia whipplei - rat-tail cholla[1]
- Cylindropuntia wolfii
References
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