General:
Perennial herb from an egg-shaped bulb 2-3 cm long; flowering stems 30-50 cm tall, more or less compressed, 2-edged, smooth.

Leaves:
Basal leaves few to several, linear, erect, about as long as the stem, 6-13 mm wide, flat, glaucous, smooth, the margins entire; stem leaves lacking.

Flowers:
Inflorescence usually of solitary, terminal, nodding, short-stalked flowers, the stalks issuing from a membranous tubular bract; flowers white, of 6 similar segments fused at the base into a 2.5-cm long tube that spreads to the broadly egg-shaped, spreading, overlapping tepals, the shallow cup-like crown (the corona, rising from between the segments and the stamens) several times shorter than the tepals, deep yellow or whitish, frilly and red-edged at the mouth; stamens 6; pistil 1, 3-chambered; ovaries inferior.

Fruits:
Capsules, triangular-egg-shaped, about 1.5 cm long; seeds several to many.

Source:  The Illustrated Flora of British Columbia

If more than one illustration is available for a species (e.g., separate illustrations were provided for two subspecies) then links to the separate images will be provided below. Note that individual subspecies or varietal illustrations are not always available.

Illustration Source:  The Illustrated Flora of British Columbia