米林糙苏 mi lin cao su

Rhizomes oblique, rooting at nodes. Stems erect, 15-40 cm tall, minutely retrorse hispid. Petiole of basal leaves to 7 cm, others 1-4.5 cm; basal leaf blades triangular-ovate, 5.5-7 × 4-5.5 cm, base cordate, margin crenate, apex obtuse to acute; stem leaves ovate to triangular-ovate, ca. 7.5 × 6 cm, adaxially hispid, abaxially stellate pilose, base shallowly cordate, margin coarsely crenate, apex acute. Verticillasters 1 or 2, ca. 10-flowered, widely spaced; floral leaves petiole 0-4 mm, blade 2.5-4 × 1.5-2.5 cm; bracts linear-subulate, ca. 8 mm, purple-brown ciliate, spinescent. Calyx tubular, ca. 13 × 5 mm, 10-veined, glabrous except for purple-brown ciliate veins outside, throat bristly; teeth ca. 2.5 × 2 mm, subtruncate or emarginate, apical spine ca. 1.5 mm. Corolla purple-red, (2-)2.5-2.8(-3) cm; tube 1.5-1.8 cm, ca. 7 mm wide at throat, apex pilose outside, pilose annulate inside; upper lip subcircular, ca. 1 cm in diam., margin denticulate, gray villous outside, gray barbate inside; lower lip ca. 8 × 8 mm, pilose outside, glabrous inside; middle lobe ca. 3.5 mm in diam.; lateral lobes shorter, semicircular. Filaments pilose at middle, posterior 2 with a basal, hooked, reflexed appendage. Nutlets glabrous. Fl. Jul.

* Picea forests, thickets; 3400-4400 m. Xizang.