Herbs perennial, 30--90 cm tall. Stems erect, slightly angular, usually simple; young parts and inflorescences ± minutely brown glandular. Leaves alternate or sometimes subopposite on lower part of stem, sessile or subsessile, lanceolate to linear-lanceolate, 5--10 X 1--2 cm, glabrous, sparsely dark purple or black glandular punctate or striate, base attenuate, margin obscurely undulate, apex acuminate. Racemes terminal, 10--25 cm; bracts linear. Pedicel erect to spreading, 4--13 mm, ca. as long as bracts. Calyx lobes 5--6 mm, abaxially with 4--6 vertical brown glandular stripes, margin membranous, apex acute. Corolla pink, 0.8--1.2 cm, parted slightly below middle; lobes obovate, glandular punctate, apex rounded; sinus between lobes acute. Stamens ca. 2/3 as long as corolla lobes; filaments adnate to base of corolla lobes; anthers elliptic, dorsifixed, ca. 1 mm. Ovary glabrous; style ca. 6 mm. Capsule subglobose, ca. 3 mm in diam.
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