E-Flora BC: Electronic Atlas of the Flora of British Columbia

General:
Perennial herb from a slender, tuber-tipped rhizome; stems erect, 10-50 cm tall, simple or branched, glabrous or appressed short-hairy.

Leaves:
Opposite, heart- to egg-shaped, 2-6 cm long, more or less entire to toothed, short-hairy on the lower surface, tips pointed; stalks 1.5-4 cm long, with narrow wings.

Flowers:
Inflorescence of terminal clusters of 8-12 flowers, often with 1 or 2 linear bracts at the base; flower stalks spreading to erect, becoming reflexed and about equalling the fruit; hypanthium 0.3-0.5 mm long; petals 2, white to pale pink, 1-1.5 mm long, erect, deeply notched; sepals 2, 1-2 mm long, bent downward; stigmas 2-lobed.

Fruits:
Capsules, top- or pear-shaped, about 2 mm long, hooked-hairy, 1-chambered; seeds 1, glabrous.

Notes:
Two subspecies occur in BC:

1. Stems glabrous; leaf bases heart-shaped; margins toothed; plants from throughout BC.................. ssp. alpina

1. Stems hairy; leaf bases from nearly heart-shaped to blunt; margins nearly entire to toothed; plants from coastal and S BC................... ssp. pacifica (Asch. & Magnus) Raven