Burke: Penstemon glandulosus

	Penstemon glandulosus
	glandular penstemon
Habit	Stout perennial herb from a branched, woody base, the several stems 4-10 dm. tall, sticky throughout with stalked glands.
Leaves	Leaves opposite, sharply toothed or entire, the basal ones 10-35 cm. long and 2.5-9 cm. wide, petiolate, the blade lanceolate to elliptic; lowermost cauline leaves reduced, the others well-developed, sessile and often clasping, broadly lanceolate to rotund-ovate, 4-12 cm. long and 2-5 cm. wide.
Flowers	Inflorescence of several verticillasters; calyx 9-15 mm. long, the 5 segments narrow and herbaceous; corolla blue-lavender, strongly glandular-hairy outside, glabrous inside, 28-40 mm. long, over 1 cm. wide at the mouth; anthers permanently horseshoe-shaped, 1.7-2.3 mm. long; pollen sacs dehiscent across their apices, the lower part saccate and indehiscent, glabrous; staminode glabrous, the tip flattened.
Fruits	Capsules 10-14 mm. long, surpassed by the calyx.

	Penstemon glandulosus
Flowering time	May-July
Habitat	Open, often rocky hillsides and banks in the foothills, valleys, and lower mountains.
Distribution	Occurring east of the Cascades crest in Washington; central Washington to north-central Oregon, and from southeastern Washington to eastern Oregon, east to Idaho. [WildflowerSearch map] [BONAP county map]
Origin	Native
Conservation status	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. 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. triphyllus, P. venustus, P. washingtonensis, P. wilcoxii
Subordinate taxa	P. glandulosus var. chelanensis, P. glandulosus var. glandulosus
Web links	Local floras: OR, WA Local Web sites: Flora NW, PNW Herbaria, Turner Photog. WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search

Penstemon glandulosus

glandular penstemon

Habit

Stout perennial herb from a branched, woody base, the several stems 4-10 dm. tall, sticky throughout with stalked glands.

Leaves

Leaves opposite, sharply toothed or entire, the basal ones 10-35 cm. long and 2.5-9 cm. wide, petiolate, the blade lanceolate to elliptic; lowermost cauline leaves reduced, the others well-developed, sessile and often clasping, broadly lanceolate to rotund-ovate, 4-12 cm. long and 2-5 cm. wide.

Flowers

Inflorescence of several verticillasters;

calyx 9-15 mm. long, the 5 segments narrow and herbaceous;

corolla blue-lavender, strongly glandular-hairy outside, glabrous inside, 28-40 mm. long, over 1 cm. wide at the mouth;

anthers permanently horseshoe-shaped, 1.7-2.3 mm. long;

pollen sacs dehiscent across their apices, the lower part saccate and indehiscent, glabrous;

staminode glabrous, the tip flattened.

Fruits

Capsules 10-14 mm. long, surpassed by the calyx.

Penstemon glandulosus

Flowering time

May-July

Habitat

Open, often rocky hillsides and banks in the foothills, valleys, and lower mountains.

Distribution

Occurring east of the Cascades crest in Washington; central Washington to north-central Oregon, and from southeastern Washington to eastern Oregon, east to Idaho.

[WildflowerSearch map]

[BONAP county map]

Origin

Native

Conservation status

Not of concern

Sibling taxa