Distribution: In the Cascade and Olympic Mountains of Washington; Alaska south to California, east to Montana, Colorado and New Mexico.
Habitat: Wet meadows and wet, rocky slopes at high elevations in the mountains.
Flowers: July-September
Growth Duration: Perennial
Conservation Status: Not of concern
Pollination: Bees
Mat-forming perennial from well-developed, creeping rhizomes, often with stolons as well, the stems 0.5-2 dm. tall, mostly glabrous.
Leaves opposite, mostly sessile, the blade under 2.5 cm. long, elliptic to ovate, slightly reduced upward, with a few irregular teeth, sub-palmately veined.
Flowers few, solitary in the leaf axils, on long pedicels; calyx 5-toothed, irregular, the upper tooth much the largest, the 2 lower ones tending to fold upward; corolla large for the size of the plant, 2-4 cm. long, strongly bilabiate, with flaring throat, yellow with maroon dots or splotches on the pubescent lower lip; stamens 4.
Capsule.
PNW Herbaria: Specimen records of Erythranthe tilingii in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Erythranthe tilingii checklist entry
OregonFlora: Erythranthe tilingii information
E-Flora BC: Erythranthe tilingii atlas page
CalPhotos: Erythranthe tilingii photos