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Perennial tufted herb from a fibrous root; stems simple, flat, winged, 5-60 cm tall.
All basal, the blades 2 to 4, linear, on the lower 1/2 of stem, 10-30 cm long, 1.5-3 mm wide, sheathing, the tips long-pointed.
Inflorescence of (1) 2 or 3 showy, nodding flowers on slender, flexuous, 3- to 4-cm long stalks; flowers yellow, of 6 distinct oblanceolate to egg-shaped segments, these similar, 1.5-2.5 cm long, 5-nerved, abruptly pointed, the tubes slightly inflated below, 1-2 mm long; bracts 2, unequal, the upper one usually exceeding the flowers; filaments fused about 1/3 to 1/2 their length; anthers 3-7 mm long, yellow.
Capsules, oblong, 5-9 mm long; seeds numerous, egg-shaped, brown, 1.5-2.5 mm wide.
Source: The Illustrated Flora of British Columbia