Keckiella rothrockii

(A. Gray) Straw

Brittonia 19: 203. 1967.

Common names: Rothrock’s keckiella
Endemic
Basionym: Penstemon rothrockii A. Gray in A. Gray et al., Syn. Fl. N. Amer. 2(1): 260. 1878
Treatment appears in FNA Volume 17. Treatment on page 77. Mentioned on page 76.
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Stems erect, 3–6 dm, densely short-hairy when young, not glaucous. Leaves subopposite or whorled (3s), subsessile; blade oblanceolate or lanceolate to widely obovate, 5–16 mm, margins entire or serrulate, sometimes with 3–7 undulations instead of teeth. Inflorescences spikelike racemes, short-hairy. Flowers: calyx 4–7 mm, lobes lanceolate; corolla brownish yellow, pale yellow, or cream, purple- or reddish brown-lined, 10–15 mm, tube plus distinct throat 7–11 mm, longer than adaxial lip, adaxial lip 4–5 mm; pollen sacs 0.8–1.1 mm; staminode glabrous, usually included.

Discussion

Varieties 2 (2 in the flora).

Selected References

None.

Key

1 Corollas 10–12 mm, glabrescent; leaves canescent. Keckiella rothrockii var. rothrockii
1 Corollas 13–15 mm, sparsely hairy; leaves glabrescent. Keckiella rothrockii var. jacintensis