Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to Oregon, east across Canada and the northern U.S. to the Atlantic Coast, also in the southeastern U.S.
Habitat: Moist, mossy forests.
Conservation Status: Not of concern
Glabrous, scapose perennial 2-6 dm. tall.
Leaves usually 2, opposite and basal, subsessile, spreading and usually lying on the ground, fleshy, suborbicular to oblong-elliptic, 6-16 cm. long and 3-14 cm. wide, rounded; scape usually with 1-3 small bracts about midlength.
Inflorescence a loose raceme with floral bracts 7-12 mm. long, green, linear to lanceolate; flowers 5-25, pale to deep greenish-white or yellowish, with pedicles 3-7 mm. long; upper sepal erect, reniform to broadly ovate, 4-8 mm. long and broad, rounded, entire to shallowly lobed near the tip; lower sepals obliquely triangular-ovate, slightly reflexed, 8-13 mm. long; petals paler than the sepals, often nearly white, narrower and shorter than the lower sepals, rounded, reflexed; lip white, strap-shaped, pendant, slightly upturned at the tip, 2-4 mm. broad and 10-20 mm. long; spur club-shaped, strongly curved, 15-25 mm. long, pale and translucent near the base, the tip greenish; stamens and style fused to form a column 4-5 mm. long with 2 lateral projections 3-5 mm. long.