Herbs perennial. Roots sometimes fusiform. Stems erect, to 50 cm tall, base woody, apex semiwoody, branched, appressed minutely hispid, internodes longer than leaves. Petiole short or obsolete; leaf blade oblong-lanceolate, 2-8.5 × 0.5-2.3 cm, papery, scabrid, appressed minutely hispid, base attenuate-cuneate, margin coarsely serrate except at base, apex obtuse to acuminate, lateral veins 5-7-paired. Thyrses terminal, lax; rachis minutely hispid; bracts subcircular, ca. 2 mm wide, margin ciliolate, apex mucronate. Pedicel 3-5 mm, minutely hispid. Calyx tubular, ca. 5.5 × 2 mm, finely pilose, purple-red; upper lip circular, ca. 2 mm wide, apex mucronate; teeth of lower lip subulate, needlelike, anterior teeth longer. Corolla white, ca. 1.1 cm, sparsely puberulent; tube ca. 8 mm, ca. 1.8 mm in diam. at base, slightly wider at throat, sparsely puberulent inside; upper lip ca. 4 × 4 mm; lower lip oblong, ca. 3.5 × 3 mm. Stamens slightly exserted from throat. Nutlets brown, subglobose, ca. 1.7 mm in diam., minutely dotted. Fl. Aug.
Home