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cliff beardtongue, rock penstemon

whorled beardtongue

Habit Basally shrubby, mat-forming perennial, the spreading-hairy, erect or ascending stems up to 1 dm. tall. Taprooted perennial, shrubby at the base, the numerous, slender and brittle stems 2.5-8 dm. tall, puberulent.
Leaves

Mat leaves thick and firm, glaucous, glabrous or with short, spreading hairs, irregularly serrulate, the broadly elliptic or obovate blade 8-18 mm. long;

leaves of the flowering shoots opposite, few, less than 1 cm. long.

Leaves irregularly arranged, many ternate or whorled, others opposite or single, glabrous or puberulent, all cauline, the lowermost reduced, the others numerous, sessile from a narrow base, linear or narrowly lance-elliptic, up to 5 cm. long and 1 cm. wide, irregularly and sharply toothed.

Flowers

Inflorescence a compact, few-flowered raceme, glandular-hairy;

calyx 6-11 mm. long, the 5 segments narrowly lance-elliptic to ovate-oblong;

corolla bright pink to rose-purple, 25-35 mm. long, keeled on the back, usually glabrous inside and out;

anthers long-woolly;

pollen sacs wholly dehiscent and opening wide enough to form a plane;

staminode slender, shorter that the fertile filaments, nearly glabrous.

Inflorescence a loose panicle, often leafy-bracteate below;

calyx 4-6 mm. long, the 5 segments green or purplish, entire, often unequal;

corolla blue-lavender to light purple-violet, 13-19 mm. long, weakly bilabiate, glandular-hairy outside and glabrous within, the upper lip cleft more than half its length;

anthers 0.9-1.3 mm. long, permanently horseshoe-shaped, the pollen sacs saccate and indehiscent below;

staminode exerted, long-bearded half its length.

Fruits

Capsule

Capsule 4-6 mm. long

Penstemon rupicola

Penstemon triphyllus

Flowering time May-August May-July
Habitat Rock cliffs and rocky slopes from middle elevations in the mountains to the alpine. Cliff crevices and dry, rocky banks and slopes at low elevations.
Distribution
Occurring on both sides of the Cascades crest and in the Columbia River Gorge in Washington; Washington to California.
[WildflowerSearch map]
[BONAP county map]
Occurring chiefly east of the Cascades crest in the southeastern area of Washington; Southeast Washington south to adjacent Oregon and east to adjacent Idaho.
[WildflowerSearch map]
[BONAP county map]
Origin Native Native
Conservation status Not of concern Not of concern
Sibling taxa
P. acuminatus, P. attenuatus, P. barrettiae, P. cardwellii, P. cinereus, P. confertus, P. davidsonii, P. deustus, P. ellipticus, P. eriantherus, P. euglaucus, P. fruticosus, P. gairdneri, P. glandulosus, P. hesperius, P. lyallii, P. ovatus, P. palmeri, P. pennellianus, P. procerus, P. pruinosus, P. richardsonii, P. rydbergii, P. serrulatus, P. speciosus, P. subserratus, P. triphyllus, P. venustus, P. washingtonensis, P. wilcoxii
P. acuminatus, P. attenuatus, P. barrettiae, P. cardwellii, P. cinereus, P. confertus, P. davidsonii, P. deustus, P. ellipticus, P. eriantherus, P. euglaucus, P. fruticosus, P. gairdneri, P. glandulosus, P. hesperius, P. lyallii, P. ovatus, P. palmeri, P. pennellianus, P. procerus, P. pruinosus, P. richardsonii, P. rupicola, P. rydbergii, P. serrulatus, P. speciosus, P. subserratus, P. venustus, P. washingtonensis, P. wilcoxii
Subordinate taxa
P. triphyllus var. triphyllus
Web links