[The Figwort Family in Mt. Adams Country]

The Penstemons of Mt. Adams Country

The Genus Penstemon

Cliff Penstemon: Penstemon rupicola

Cliff Penstemon: Penstemon rupicola

Shrubby Penstemon: Penstemon fruticosus var. fruticosusThe photo at right shows an albino form of shrubby penstemon as seen on the northern slopes of Mt. Adams.........July 12, 2005.

Taper-leaved Penstemon: Penstemon attenuatus var. attenuatus -

Barrett's Penstemon: Penstemon barrettiae -

Cardwell's Penstemon: Penstemon cardwellii - Reported from the mountain, but I'm not sure that its prescence has been verified. Plants shrubby and low growing. Anthers densely long-woolly with tangled hairs.

Yellow Penstemon: Penstemon confertus - Flowers yellowish, the outer surface of the corolla glabrous.

Davidson's Penstemon: Penstemon davidsonii var. davidsonii - Plants shrubby and low growing, the flowering stems generally not higher than 15 cm. Anthers densely long-woolly with tangled hairs. Leaf blades 1-2.5 times longer than wide and glabrous.

Davidson's Penstemon: Penstemon davidsonii var. menziesii - Reported for the mountain, but I don't believe its presence has been verified. Plants shrubby and low growing, the flowering stems generally not higher than 15 cm. Anthers densely long-woolly with tangled hairs. Leaf blades 1-2.5 times longer than wide and glabrous.

Glaucous Penstemon: Penstemon euglaucous -

Shrubby Penstemon: Penstemon fruticosus var. fruticosus - Plants shrubby and low growing. Anthers densely long-woolly with tangled hairs.

Low Beardtongue, Lowly Penstemon: Penstemon humilis var. humilis (Synonyms: Penstemon cinereus, Penstemon cinereus ssp. cinereus, Penstemon cinereus ssp. foliatus, Penstemon humilis ssp. humilis) -

Small-flowered Penstemon: Penstemon procerus var. procerus -

Small-flowered Penstemon: Penstemon procerus var. tolmiei -

Cliff Penstemon: Penstemon rupicola - Plants shrubby and low growing, the flowering stems generally not higher than 15 cm. Anthers densely long-woolly with tangled hairs. Leaf blades 1-2.5 times longer than wide, glaucous and often covered with short, spreading hairs. Flowers bright, pink, red, pink-lavender or rose-purple. Corollas lacking hairs or only with a few hairs at the base of the inner lip.

Rydberg's Penstemon: Penstemon rydbergii var. oreocharis -

Cascade Penstemon: Penstemon serrulatus -

Fine-toothed Penstemon: Penstemon subserratus -


Paul Slichter E-mail