OP016: Opuntia imbricata v. aborescens
OP016: Opuntia imbricata v. arborescens (Colorado Tree Cholla) The largest cactus species in Colorado (60” high by 72” wide). Reddish-rose flowers in July followed by green fruit. An important landscape plant. Suitable for culture in large pots. Zone 5.

This is the Cholla of southeast Colorado with purple flowers.