- any of various orchids, especially of the genera Listera and Liparis, characterized by two nearly opposite broad leaves.
Origin of twayblade
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- any terrestrial orchid of the genus Listera, having a basal pair of oval unstalked leaves arranged opposite each other
- any of various other orchids with paired basal leaves
C16: translation of Medieval Latin bifolium having two leaves, from obsolete tway two + blade