硬毛夏枯草 ying mao xia ku cao

Prunella stolonifera H. Léveillé & Giraudias; P. vulgaris Linnaeus var. hispida (Bentham) Bentham.

Stem base prostrate, 15-30 cm, striate, densely hirsute. Petiole 0.5-1.5 cm; leaf blade ovate to ovate-lanceolate, 1.5-3 × 1-1.3 cm, densely hispid, base rounded, margin undulate-serrate to crenate-serrate, apex acute. Spikes 2-3 × 2 cm; floral leaves subsessile; bracts subcordate, 8-10 mm wide, abruptly acuminate, densely hirsute, margin hispid. Pedicel less than 1 mm. Calyx purple, tubular-campanulate, ca. 1 cm, hispid on veins; upper lip subcircular, ca. 6 × 5 mm; lower lip ca. 3 mm wide, teeth lanceolate, spinescent. Corolla dark purple to blue purple, ca. 1.5(-1.8) cm, glabrous, tube ca. 1 cm, base ca. 1.5 mm, gradually dilated to 4 mm wide at throat; upper lip oblong, ca. 5 × 4 mm, keeled, concave, emarginate, hispid on back; lower lip ca. 5 × 6 mm, with middle lobe subcircular, undulate-lobulate; lateral lobes oblong, minute, pendulous. Anterior stamens very long. Nutlets ovoid, ca. 1.5 × 1 mm, slightly flattened abaxially, apex rounded, glabrous. Fl. and fr. Jun-Jan.

Forest margins, grassy slopes; 1500-3800 m. Sichuan, Xizang, Yunnan [India].