Penstemon cardwellii |
Penstemon richardsonii |
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Cardwell's beardtongue |
Richardson's penstemon |
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Habit | Low shrub, the stems 1-3 dm. tall, ascending or erect. | Taprooted perennial, shrubby at the base, the several brittle, slender stems 2-8 dm. tall, puberulent, the inflorescence glandular-hairy and the leaves often glabrous. |
Leaves | 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. |
Leaves opposite, all cauline, the lower reduced and short-petiolate, the others sessile, sharply serrate-dentate to irregularly pinnatifid, up to 7 cm. long and 3 cm. wide. |
Flowers | 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 |
Inflorescence a terminal panicle, leafy-bracteate below; calyx 4-8 mm. long, the 5 segments green or purplish, mostly entire, often unequal; corolla bright lavender to purplish-red, glandular-hairy outside, mostly glabrous within, 22-32 mm. long, over 1 cm. wide at the mouth, strongly bilabiate, the upper lip cleft nearly half its length; anthers 1.3-1.7 mm. long, permanently horseshoe shaped, the pollen sacs saccate and indehiscent below; staminode shortly exerted, long-bearded toward the tip, or glabrous. |
Fruits | Capsule |
Capsule 5-8 mm. long |
Penstemon cardwellii |
Penstemon richardsonii |
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Flowering time | May-July | June-August |
Habitat | Open or wooded summits or slopes at middle elevations in the mountains. | Cliff crevices and other dry, rocky places at low to moderate elevations. |
Distribution | Occurring west of the Cascades crest in Washington; southwestern Washington to southwestern Oregon.
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Occurring east of the Cascades crest in Washington; southern British Columbia to north-central and northeast Oregon.
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Origin | Native | Native |
Conservation status | Not of concern | Not of concern |
Sibling taxa | ||
Subordinate taxa | ||
Web links |