Disocactus biformis on the top has two forms, cylindrical and a narrow, two-ribbed version. Disocactus nelsoni, the lower shoot, has a broad, 2-ribbed stem with undulated rib margins.
Disocactus biformis on the top has two forms, cylindrical and a narrow, two-ribbed version. Disocactus nelsoni, the lower shoot, has a broad, 2-ribbed stem with undulated rib margins.