Key to the genus Eurychone Schltr.

1a Leaves oblong or ligulate, less than 2.5 cm broad; flowers usually pink, lacking a dark blotch on the lip; sepals and petals 15-18 mm long, spur 25-30 mm long. Eurychone galeandrae (Rchb.f.) Schltr.
2a Leaves broadly elliptic to obovate; flowers white with a dark blotch in the lip; sepals and petals 20-25 mm long; spur 20-25 mm long. Eurychone rothschildiana (O'Brien) Schltr.

WCSP (2017). 'World Checklist of Selected Plant Families. 28.02-2017;