The leaves have no hairs on the margin and are somewhat narrow, distinguishing this plant from the similar Streptopus.

Convallariaceae Streptopus tilingii (Regel) Grey-Hardy Bulbs, ii.

Taxonomists believe that Scoliopus is closely related to Calochortus, Prosartes, Streptopus and Tricyrtis, which all have creeping rhizomes as well as styles that divide at the tip.

Streptopus amplexifolius (twistedstalk, clasping twistedstalk,claspleaf twistedstalk, White Twisted-stalk, or watermelon berry) is a species of flowering plant in the family Liliaceae, native to North America, Europe and Asia.

The family have been split and the genera Disporum, Kuntheria, Schelhammera, Tripladenia and Uvularia are now placed in the autumn crocus family (Colchicaceae), while Clintonia, Medeola, Prosartes, Scoliopus and Streptopus are placed in the lily family (Liliaceae).