Page authors: Don Knoke, David Giblin
Penstemon cardwellii
Cardwell's beardtongue

Distribution: Occurring west of the Cascades crest in Washington; southwestern Washington to southwestern Oregon.

Habitat: Open or wooded summits or slopes at middle elevations in the mountains.

Flowers: May-July

Origin: Native

Conservation Status: Not of concern


Low shrub, the stems 1-3 dm. tall, ascending or erect.


Leaves opposite, glabrous, the largest on short, sterile shoots, serrulate or nearly entire, short-petiolate, the blades elliptic, 1.5-3.5 cm. long and 6-14 mm. wide; leaves of the flowering shoots less crowded, smaller, sessile and entire.


Inflorescence racemose, few-flowered and crowded, glandular, the simple pedicels opposite and axillary; calyx 5-12 mm. long, the 5 segments thin and lanceolate; corolla bright purple to deep blue-violet, 30-38 mm. long, about 1 cm. wide at the mouth, keeled on the back, glabrous outside and with long, white hairs near the base of the lower lip within; anthers long-wooly, pollen sacs opposite; staminode slender, shorter than the 4 fertile filaments, long-bearded toward the tip



Accepted Name:
Penstemon cardwellii Howell
Publication: Fl. N.W. Amer. 5: 510-511. 1901.

Synonyms & Misapplications:
(none provided)
Additional Resources:

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

WA Flora Checklist: Penstemon cardwellii checklist entry.

E-Flora BC: Penstemon cardwellii atlas page.

CalPhotos: Penstemon cardwellii photos.

USDA Plants: Penstemon cardwellii information.

23 photographs:
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