Herbs biennial, ca. 25 cm tall. Stems glandular pubescent. Leaves deltate-ovate or broadly lanceolate, 8-10 mm. Inflorescences spicate, ca. 14 cm; bract ovate, 6-9 mm, along with bractlets and calyx glandular pubescent abaxially; bractlets linear-subulate, shorter than bract. Calyx broadly campanulate, 8-11 mm, 4-lobed; lobes deltate or deltate-lanceolate, ca. 1/2 as long as calyx tube. Corolla pale yellow, white on tube, sometimes pale purple villous on lobes, becoming pale yellow when dry, 1.8-2.2 cm; tube slightly enlarged, constricted upward, glandular pubescent abaxially; upper lip suberect, lobes ovate. Stamens inserted near base of corolla tube, glabrous or pubescent; anthers white after drying, villous. Style glabrous; stigma yellow. Fl. Jun-Jul.
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