Harrisia gracilis var. simpsonii (Small ex Britton & Rose) D.B.Ward in Novon 14: 367. 2004
Harrisia gracilis var. simpsonii in Novon 14: 367. 2004
is new combination for Harrisia simpsonii, Cactaceae 2: 152. 1920
Harrisia gracilis var. simpsonii in Novon 14: 367. 2004
Taxon for this name