Mammillaria wrightii var. viridiflora (Britton & Rose) W.T.Marshall in Desert. Bot. Gard. Arizona, Sci. Bull. 1: 102. 1950
Mammillaria wrightii var. viridiflora in Desert. Bot. Gard. Arizona, Sci. Bull. 1: 102. 1950
is new combination for Neomammillaria viridiflora, Cactaceae 4: 153. 1923