Disocactus biformis (Lindl.) Lindl.
      
no HD illustration available (m3)
2 351989 Disocactus biformis (Lindl.) Lindl. [80 225633 Cereus biformis Lindl.] Cactaceae
N.L. Britton, J.N. Rose, Cact., vol. 4 : t. 32 (1923) [M.E. Eaton]