Distribution: Occurring west of the Cascades crest on the Olympic Peninsula and south in Washington; Washington south along the coast to southwestern Oregon.
Habitat: Wet banks and near waterfalls, usually growing in moss, from low to middle elevations in the mountains.
Conservation Status: Not of concern
Glabrous, herbaceous perennials from slender, fragile rhizomes, the stems trailing to erect, branching or simple, often with very slender, stolonous basal shoots 5-40 cm. long.
Leaves alternate, glabrous, succulent, the lower ones entire with elliptic blades 1.5-4 mm. long and slender petioles of equal length; cauline leaves numerous, oblong-obovate, up to 19 mm. long and 11 mm. broad, with 3 lobes across the rounded tip.
Flowers 2-several in raceme-like, loose, simple to branched, bracteate cymes; calyx glabrous, 2.5-3.5 mm. long, the 5 lobes triangular; petals 5, white with pink veins, 2-4 times as long as the calyx lobes; stamens 10, equaling the calyx lobes, inserted with the petals; ovary 2/3 inferior.
Capsule 3.5-5 mm. long.