– greater boykinia, Sierran brookfoam
Distribution: Occurring on the Olympic Peninsula in Washington; Washington south along the coast to central Oregon.
Habitat: Moist woods, meadows, streambanks, roadside ditches.
– coastal brookfoam
Distribution: West of the Cascades crest in Washington; British Columbia south to California.
Habitat: Moist woods and along streams, lowlands and along the coast.