Dioscorea obtusifolia Hook. & Arn. var. obtusifolia

Dioscorea obtusifolia Hook. & Arn. var. obtusifolia es un sinónimo de
Dioscorea humifusa Poepp. var. gracilis (Hook. & Arn.) L.E. Navas

Bot. Beechey Voy. 1: (1830)

Hooker & Arnott (1830)

Hooker, W.J. y Arnott, G.A.W. 1830. The botany of Captain Beechey's voyage; comprising an account of the plants collected by Messrs Lay and Collie, and other officers on the expedition, during the voyage to the Pacific and Bering's Strait, performed in His Majesty's Ship Blossom, under the command of Captain F. W. Beechey, R. N., F. R., & A. S., in the years 1825, 26, 27, and 28. Part 1. London: Henry G. Bohn