Mammillaria grahamii var. oliviae - orchidroots .

Mammillaria grahamii var. oliviae (synonym of Mammillaria grahamii subsp. grahamii)

Mammillaria grahamii var. oliviae, (Orcutt) L.D. Benson (ITIS)

Mammillaria grahamii var. oliviae is a species in the Mammillaria genus. This name is a synonym of Mammillaria grahamii subsp. grahamii
No image available. Please try the accepted species grahamii subsp. grahamii