Opuntia engelmannii var. flexospina (Griffiths) B.D.Parfitt & Pinkava in Madroño 35: 348. 1989 ["1988"]
Opuntia engelmannii var. flexospina in Madroño 35: 348. 1989 ["1988"]
is new combination for Opuntia flexospina in Bull. Torrey Bot. Club 43: 87. 1916
Opuntia engelmannii var. flexospina in Madroño 35: 348. 1989 ["1988"]