Buckley's penstemon

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Buckley's penstemon

Buckley's penstemon habit

Buckley's penstemon

Buckley's penstemon verticillasters

Buckley's penstemon inflorescence

Buckley's penstemon flower

Buckley's penstemon

Buckley's penstemon

Buckley's penstemon leaves

Buckley's penstemon inflorescence

Buckley's penstemon flowers

Buckley's penstemon inflorescence

Morphology

Stem

Erect or ascending, 1-5, stout, unbranched, glabrous, waxy.

Leaves

Opposite, simple, thick, firm, glabrous, waxy; basal leaves stalked, oblanceolate to spatulate, 1 to 6 inches long, to 1.25 inch wide; tips blunt or pointed, often terminating in short, abrupt bristles; stem leaves clasping, lanceolate to ovate, 1 to 4 inches long, .5 to 1.25 inch wide, often crowded.

Inflorescence

Panicles, elongate, to 22 inches long, with 2-35 verticillasters (whorl-like clusters) of 2-11 flowers; bracts clasping, lance-ovate to ovate, tips pointed, reduced above.

Flower

Calyces 5-lobed, glabrous, waxy; corollas funnel-shaped, to 3/4 inch long, lavender, pale pink, or pale blue, slightly 2-lipped, upper lip 2-lobed, lower lip 3-lobed; throat with conspicuous reddish purple lines; stamens 5, 4 fertile, 1 sterile, bearing golden-yellow hairs at tip.

Fruit

Capsules, egg-shaped, 1/2 to 3/4 inch long, woody; seeds small, numerous, brown.

Ecology

Habitat

Sandy soils.

Distribution

West 2/3 of Kansas.

Additional Notes