[The Orchid Family West of the Cascade Mountains]
Twayblades West of the Cascade Mountains of Oregon and Washington

The Genus Listera

 

 

Northwest Twayblade, Northwestern Twayblade, Western Twayblade: Listera caurina (Synonyms: Listera retusa, Neottia caurina, Ophrys caurina) -

Broad-lipped Twayblade, Broadleaf Twayblade: Listera convallarioides (Synonyms: Bifolium convallarioides, Diphryllum convallarioides, Epipactis convallarioides, Listera eschscholziana, Ophrys convallarioides) -

Heart-leaf Twayblade: Listera cordata (Synonyms: Bifolium cordatum, Diphryllum cordatum, Distomaea cordata, Listera cordata var. cordata, Listera cordata var. nephrophylla, Neottia cordata, Ophrys cordata, Pollinirhiza cordata) -

Paul Slichter E-mail