General: Perennial herb from slender rhizomes, with fibrous roots; stems 10-35 cm tall, with 2 leaves, glandular-hairy above.
Leaves: Two, near middle of stem, roughly opposite, elliptic to broadly egg-shaped or nearly circular, 2-7 cm long, 1.5-6 cm wide, smooth, abruptly tapered to base.
Flowers: Inflorescence a many-flowered, terminal raceme, the flowers yellowish-green; sepals 4.5-6 mm long, narrowly lanceolate, 1-veined, distinct; petals similar to sepals but narrower, 4-5 mm long; lip 8-13 mm long, 5-7 mm wide at tip, broadly wedge-shaped, with a shallow notch at tip, base with a short triangular tooth on each side, short-clawed; column 2.5-3.5 mm long.
Fruits: Capsules, spreading, egg-shaped, to 4 mm long.
A shade-tolerant, submontane to montane, Asian and transcontinental North American forb. Occurs in cool temperate and cool mesothermal climates on fresh to very moist, nitrogen-rich soils: its occurrence decreases with increasing elevation and continentality. Sporadic in semi-terrestrial communities on watercollecting sites: occasionally associated with Lysichitum americanum. A nitrophytic species characteristic of Moder and Mull humus forms.
Recommended citation: Author, Date. Page title. In Klinkenberg, Brian. (Editor) 2017. E-Flora BC:
Electronic Atlas of the Plants of British Columbia [eflora.bc.ca]. Lab for
Advanced Spatial Analysis, Department of Geography, University of British
Columbia, Vancouver. [Accessed:
16/06/2019 12:09:27 AM
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