Page author: David Giblin
Penstemon washingtonensis
Washington beardtongue

Distribution: Endemic to Chelan and Okanogan counties, Washington.

Habitat: From open slopes and flats at moderate elevations to alpine meadows.

Flowers: July-August

Origin: Native

Conservation Status: Not of concern


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

Accepted Name:
Penstemon washingtonensis D.D. Keck
Publication: American Midland Naturalist 33(1): 150-151, f. 6. 1945.

Synonyms & Misapplications:
(none provided)
Additional Resources:

PNW Herbaria: Specimen records of Penstemon washingtonensis in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Penstemon washingtonensis checklist entry.

E-Flora BC: Penstemon washingtonensis atlas page.

CalPhotos: Penstemon washingtonensis photos.

USDA Plants: Penstemon washingtonensis information.

2 photographs:
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