Platanthera dilatata var. dilatata

This is the Tall White Northern Bog Orchis, Platanthera dilatata var. dilatata, photographed along the North Cascades Highway near Washington Pass. This orchid, along with the Slender Bog Orchis, Platanthera stricta can be found in abundance along the roadsides of most of the passes in the Cascades. It is sweetly scented and is often found, as this spike of flowers, with the lip caught in the petals and dorsal sepal.