Penstemon radicosus |
Penstemon gairdneri |
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gairdner's penstemon |
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Habit | Plants from a branched, woody base, the several, erect stems 1-4 dm. tall, also with short, densely-leafy sterile stems which tend to form loose mats; herbage finely gray-puberulent, with a few stalked glands in the inflorescence. | |
Leaves | Leaves numerous, opposite to alternate, or irregularly scattered, entire, linear, seldom over 3 mm. wide. |
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Flowers | Inflorescence of several few-flowered verticillasters; calyx 3.5-8 mm. long, the 5 segments broadly lanceolate, entire; corolla blue-purple or lavender, or occasionally bright rose-purple, 14-22 mm. long, somewhat glandular-hairy externally and internally near the mouth, the tube flared, the limb spreading; pollen sacs glabrous, ovate, 0.8-1.2 mm. long, becoming opposite; staminode bearded toward the tip. |
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Fruits | Capsule 6-8 mm. long. |
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Penstemon radicosus |
Penstemon gairdneri |
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Flowering time | May-June | |
Habitat | Dry, open sagebrush desert and scablands, low to moderate elevations in the mountains. | |
Distribution | East of the Cascades in Washington; Washington south to Oregon, east to Idaho.
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Origin | Native | |
Conservation status | Not of concern | |
Sibling taxa | ||
Subordinate taxa | ||
Web links |