Herbs perennial. Rhizomes producing stolons from nodes. Stems purplish, erect to slightly curved, 8-24(-35) cm tall, sparsely and upwardly curved strigose-pubescent to hirsute especially on nodes and angles. Petiole 5-6.5 mm basally, 1-2 mm upward, hirsute; leaf blade elliptic, rarely narrowly elliptic, 1-2.5 cm × 3-15 mm, thin, papery, densely appressed strigose-hirsute, abaxially densely impressed glandular, base shallowly cordate to subtruncate, margin shallowly obtuse dentate, sometimes serrate to subentire, apex obtuse to rounded. Racemes poorly defined, terminal; bracteoles needlelike, ca. 1 mm, inserted on basal 1/4 of pedicels. Flowers axillary. Pedicel 2.5-3.5(-5) mm, densely appressed pubescent. Calyx 3-3.5 mm, densely strigose-hirsute, to 6 mm in fruit; scutellum incon-spicuous, less than 1 mm, ca. 1.5 mm in fruit. Corolla purple, 1.6-1.8(-2.4) cm, glandular pubescent outside, glabrous inside; tube slightly saccate in front at base, 1.5(-2.5) mm wide at middle, gradually dilated upward, to 5(-6) mm wide at throat; middle lobe of lower lip longer than upper lip, broadly ovate, ca. 8 mm wide, apex emarginate; lateral lobes shorter than upper lip, narrowly ovate, apex subtruncate. Nutlets yellow-brown, subglobose, ca. 1.25 mm in diam., densely tuberculate, adaxially umbonate. Fl. and fr. May-Oct.
Home