Herbs perennial, 1--1.5 m tall. Stems erect, quadrangular, usually branched in upper part. Leaves opposite, nearly erect, sessile, linear-lanceolate, 5--11 X 1--1.5 cm, subleathery, abaxially glaucous, densely minutely dark glandular punctate, base short attenuate, semi-clasping, apex acute. Racemes terminal, initially coniform, gradually elongating to 24 cm; bracts acuminate-subulate, ca. 6.5 X 1 mm, densely glandular punctate. Pedicel spreading, to 1 cm, glandular. Calyx lobes purplish, ovate, ca. 4 X 1.2 mm, sparsely dark glandular striate and punctate near apex, base dark green, margin membranous. Corolla reddish or pale purple; tube ca. 1.5 mm; lobes obovate, ca. 5 X 4 mm, red striate near apex, base slightly clawed, margin crenulate, apex rounded. Stamens exserted, to 8.5 mm; filaments adnate to base of corolla lobes; anthers elliptic, dorsifixed, ca. 1 mm. Ovary ovoid; style filiform, 5--8 mm. Capsule subglobose, ca. 4 mm in diam. Fl. Jul.
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