Cylindropuntia

P.V.Heath

(M.A.Baker & Pinkava) M.A.Baker & Pinkava

(Griffiths) F.M.Knuth

(Griffiths) F.M.Knuth

(Griffiths) Pinkava

P.V.Heath

(V.E.Grant & K.A.Grant) P.V.Heath

(Griffiths) F.M.Knuth

(Toumey) F.M.Knuth

(Britton & Rose) F.M.Knuth

(Rose) F.M.Knuth

(Hester) Backeb.

A branched cholla of North American dry areas, also known as Opuntia acanthocarpa. Studies cover ants using extrafloral nectar and the fate of dead segments in water and element cycling.

(F.A.C.Weber) F.M.Knuth

(Pinkava) E.F.Anderson

(Engelm.) F.M.Knuth

(Engelm. ex Parish) M.A.Baker, Cloud-H. & Rebman

A densely armed cholla whose segment is both a photosynthetic organ and a propagule. The species serves as a model for research on stem-junction fracture, wound-barrier formation and the influence of spines on light access.

(Torr. & A.Gray) F.M.Knuth

(J.M.Coult.) F.M.Knuth

(Britton & Rose) F.M.Knuth

Rebman

(F.A.C.Weber) F.M.Knuth

M.A.Baker & Cloud-H.