Burke: Penstemon subglaber vs. Penstemon barrettiae

	Penstemon subglaber	Penstemon barrettiae
		Barrett's beardtongue
Habit		Perennial, the lower part shrubby and branched, the stems 2-4 dm. tall; herbage and inflorescence glabrous and glaucous.
Leaves		Leaves opposite, firm, irregularly serrulate or entire, the larger ones, up to 8 cm. long and 2.5 cm. wide, on sterile shoots borne toward the base of the main stem; cauline leaves broad, sessile, and clasping, 1.5-3.5 cm. long and 0.8-2 cm. wide
Flowers		Inflorescence essentially a raceme, the axillary peduncles simple and single-flowered or sometimes branched and 2-flowered; calyx 5-7 mm. long, the 5 segments thin, ovate; corolla bilabiate, lilac or rose-purple, 33-38 mm. long, 1 cm. wide at the mouth, glabrous outside, long-hairy near the base of the lower lip within; anthers densely long-woolly, pollen sacs wholly dehiscent, becoming opposite
Fruits		Capsule narrow, up to 1 cm. long.

	Penstemon subglaber	Penstemon barrettiae
Flowering time		April-May
Habitat		Woodland openings and rocky slopes at low elevations.
Distribution	[WildflowerSearch map] [BONAP county map]	Occurring in the east end of the Columbia River Gorge in Washington; south-central Washington to adjacent north-central Oregon. [WildflowerSearch map] [BONAP county map]
Origin		Native
Conservation status		Threatened in Washington (WANHP)
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. rupicola, P. rydbergii, P. serrulatus, P. speciosus, P. subserratus, P. triphyllus, P. venustus, P. washingtonensis, P. wilcoxii	P. acuminatus, P. attenuatus, 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. triphyllus, P. venustus, P. washingtonensis, P. wilcoxii
Web links	Local Web sites: Flora NW, PNW Herbaria WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search	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 subglaber

Penstemon barrettiae

Barrett's beardtongue

Habit

Perennial, the lower part shrubby and branched, the stems 2-4 dm. tall; herbage and inflorescence glabrous and glaucous.

Leaves

Leaves opposite, firm, irregularly serrulate or entire, the larger ones, up to 8 cm. long and 2.5 cm. wide, on sterile shoots borne toward the base of the main stem;

cauline leaves broad, sessile, and clasping, 1.5-3.5 cm. long and 0.8-2 cm. wide

Flowers

Inflorescence essentially a raceme, the axillary peduncles simple and single-flowered or sometimes branched and 2-flowered;

calyx 5-7 mm. long, the 5 segments thin, ovate;

corolla bilabiate, lilac or rose-purple, 33-38 mm. long, 1 cm. wide at the mouth, glabrous outside, long-hairy near the base of the lower lip within;

anthers densely long-woolly, pollen sacs wholly dehiscent, becoming opposite

Fruits

Capsule narrow, up to 1 cm. long.