Page authors: Don Knoke, David Giblin
Penstemon washingtonensis
Washington beardtongue
Specimens
Photos

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

Description:
General:

Tufted perennials from a loose, woody rhizome, the stems 1-2.5 dm. tall, usually glabrous below the glandular-hairy inflorescence.

Leaves:

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.

Flowers:

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.

Fruits:

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

OregonFlora: Penstemon washingtonensis information

E-Flora BC: Penstemon washingtonensis atlas page

CalPhotos: Penstemon washingtonensis photos

5 photographs:
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