Plants slender up to 40cm, suffused with beetroot-red. Leaves green and narrowly-lanceolate. Inflorescence lax, up to 30cm long, flowers beetroot-red; lateral sepals spreading paler in colour, often yellow or white. Spur slender and acute, 20-24mm long. Lip narrow, fleshy 8-10mm long.

Species most likely pollinated by settling moths which are attracted by the rich cinnamon scent emitted in the evening.