“…F.M.Knuth, the Christmas cholla or tasajillo, is widespread in the Chihuahuan and Sonoran deserts and can be found in central and eastern Texas (Benson, ; Pinkava, ; Powell and Weedin, ), and C. tunicata (Lehm.) F.M.Knuth has been introduced widely into parts of South America (Ritter, ; Madsen, ; Anderson, ; Pinto and Kirkberg, ; Hunt, ; Ostolaza, ; Rodriguez et al., ). Cylindropuntia is the largest genus in the tribe, with ~39 species (Anderson, ; Pinkava, ; Baker and Cloud‐Hughes, ; Rebman, ); Grusonia (including Corynopuntia F.M.Knuth) is the second largest, with ~22 taxa (Pinkava, ; Rebman, ; Donati, , , , b; Fenstermacher, ); and Micropuntia is usually circumscribed as one species, M. pulchella (Engelm.)…”