General:
Small annual or perennial herb, 2-10 cm tall, from fibrous roots, usually with stolons rooting at the nodes and forming secondary plantlets, often submerged.

Leaves:
All basal in a tuft, long-stalked, the blades oblong to narrowly elliptic, 1-3 cm long, narrowing to slender stalks 1-8 cm long, entire, smooth.

Flowers:
Inflorescence of several to many, solitary flowers atop 8- to 30-mm long, naked stalks arising from the axils of the tufted leaves; corollas white or pinkish, with a bell-shaped, 2-mm long tube spreading to 5 lance-oblong lobes about 1 mm long; calyces green with purplish spots, bell-shaped, 2-3 mm long, 5-lobed, the lobes broadly triangular, shorter than the tube; stamens 4.

Fruits:
Capsules, broadly egg-shaped, 2-3.5 mm long, the fruiting stalks spreading; seeds numerous, finely cross-corrugated.

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