A key to the genus Epipogium R. Br.
|1a.||Saprophytic leafless terrestrial herb up to 45 cm. high; tuber ovoid, up to 4 cm. long and 2•5 cm. diam.; scape erect, rather fleshy, with numerous blunt loosely sheathing scales on the lower part; raceme up to 25-flowered, 3-15 cm. long; flowers usually pendulous, whitish or cream with small purplish or pink spots; sepals and petals narrow, acute, nearly 1 cm. long; lip entire, narrowly ovate, with the cordate base enveloping the column, acute, about 1 cm. long, with 2 lines of short hairs running from base to apex, the latter somewhat thickened; spur up to 5 mm. long; column with swollen stigmatic lobes at the base, and much thickened at the apex||Epipogium roseum|
World Checklist of Monocotyledons. The Board of Trustees of the Royal Botanic Gardens, Kew. Published on the Internet; http://www.kew.org/wcsp/monocots/ accessed 17/02/2015