Opuntia engelmannii var. discata (Griffiths) A.Nelson in Trans. Acad. Sci. St. Louis 12: 124. 1919
Opuntia engelmannii var. discata in Trans. Acad. Sci. St. Louis 12: 124. 1919
is new combination for Opuntia discata in Rep. (Annual) Missouri Bot. Gard. 19: 266–267, pl. 27. 1908
Opuntia engelmannii var. discata in Trans. Acad. Sci. St. Louis 12: 124. 1919