Glottiphyllum longum var. heterophyllum (Haw.) G.D.Rowley in Natl. Cact. Succ. J. 28: 6. 1973 Glottiphyllum longum var. heterophyllum (Haw.) G.D.Rowley in Natl. Cact. Succ. J. 28: 6. 1973Taxon for this nameGlottiphyllum longum var. heterophyllum (Haw.) G.D.Rowley
