Keckiella corymbosa

(Bentham ex A. de Candolle) Straw

Brittonia 19: 203. 1967.

Common names: Redwood keckiella
Basionym: Penstemon corymbosus Bentham e× A. de Candolle in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 10: 593. 1846
Treatment appears in FNA Volume 17. Treatment on page 79. Mentioned on page 76, 80.

Stems spreading to erect, 3–6 dm, glabrous or hairy when young. Leaves opposite; blade oblanceolate or lanceolate to narrowly obovate or ovate, 10–35 mm, base wedge-shaped, margins entire or 3–5-toothed. Inflorescences corymbs, glandular-hairy and densely coarse-hairy. Flowers: calyx 6.4–11 mm, lobes lanceolate, sometimes ovate to oblanceolate; corolla pink to red, 22–40 mm, tube plus indistinct throat 17–22 mm, adaxial lip 9–15 mm; pollen sacs 0.9–1 mm; staminode densely yellow-hairy, included. 2n = 16.

Phenology: Flowering Jun–Aug(–Oct).
Habitat: Rocky slopes, coniferous or hardwood forests, chaparral.
Elevation: 40–2000 m.


Keckiella corymbosa occurs in the coastal ranges from the Central Coast to the North Coast regions of California. D. D. Keck (1936) argued that indument variation has no coherent pattern within K. corymbosa. D. C. Michener (1982) proposed that widespread introgression involving multiple species might be responsible.

Selected References


Lower Taxa