Distribution: Occurring east of the Cascades crest, where endemic to Chelan and Okanogan in Washington.
Habitat: From open slopes and flats at moderate elevations to alpine meadows.
Flowers: June-August
Origin: Native
Growth Duration: Perennial
Conservation Status: Not of concern
Pollination: Bumblebees, bees, flies, wasps, hummingbirds
Tufted perennials from a loose, woody rhizome, the stems 1-2.5 dm. tall, usually glabrous below the glandular-hairy inflorescence.
Leaves opposite, entire, the basal ones well-developed and forming rosettes, 2.5-6 cm. long and 5-18 mm. wide; cauline leaves few, sessile, often reduced.
Inflorescence of 1-3 dense verticillasters; calyx 4-6 mm. long, the 5 segments tapered, with scarious margins; corolla deep blue or occasionally pale yellow, glandular-hairy, 9-12 mm. long, the tube narrow, only 2-3 mm. wide at the mouth, the raised portion of the lower lip bearded; pollen sacs glabrous, sub-rotund, 0.5-0.6 mm. long, wholly dehiscent, becoming opposite; staminode bearded toward the expanded tip.
Capsule 4-5 mm. long
Publication: American Midland Naturalist 33(1): 150-151, f. 6. 1945.
PNW Herbaria: Specimen records of Penstemon washingtonensis in the Consortium of Pacific Northwest Herbaria database.
WA Flora Checklist: Penstemon washingtonensis checklist entry.
OregonFlora: Penstemon washingtonensis information.
E-Flora BC: Penstemon washingtonensis atlas page.
CalPhotos: Penstemon washingtonensis photos.
USDA Plants: Penstemon washingtonensis information.
