Gravelly humic soil over dolomite, in both damp and dry cedar woodlands.

Height 20 - 60 cm.
Leaves - 2, opposite, below middle of stem, ovate to elliptic, up to 15 X 12 cm.
Flowers are yellowish - green, lip dilated and cleft at the apex into two blunt lobes with a small tooth in between..

A much larger plant than our native Twayblades. Vigorous and widespread in a variety of habitats throughout Europe, excepting Portugal, and extending into Siberia and India.
First discovered, near Red Bay in the Bruce Peninsula by Bessie Plunkett of Thunder Bay. In 1980 a second colony was discovered in southwestern Wellington County (Anderson and Goltz).

Orchids of Ontario
The Orchids of Bruce & Grey