洱源鼠尾草 er yuan shu wei cao

Plants perennial. Stems erect, 23-28 cm, densely pilose. Petiole 0.5-12 cm; leaf blade elliptic-ovate, (2.5-) 3-6 × 1.5-4.5 cm, papery, adaxially pilose, abaxially pilose along veins, red-brown glandular, base subtruncate to shallowly cordate, margin shallowly crenate, apex rounded. Inflorescences pilose; verticillasters 6-flowered, in terminal racemes or raceme-panicles; bracts oblong-elliptic, acute, shorter than calyx. Pedicel 2-3 mm. Calyx campanulate, 9-10 mm, villous, glandular, minutely hispid inside, blackish when dry; upper lip semicircular, ca. 2.5 × 6 mm, 5-veined; lower lip 2-toothed, teeth triangular, apex short acuminate to acute. Corolla blue, 1.7-1.9 cm; tube ca. 1 cm, base glabrous, apex pilose outside, obliquely pilose annulate inside, straight, adaxially gradually dilated to apex; upper lip straight, ca. 6 × 7 mm; lower lip ca. 8 × 9 mm, middle lobe subobcordate, ca. 4 × 7 mm; lateral lobes ovate. Filaments ca. 5 mm, glabrous; connectives 2-2.5 mm, arcuate. Style exserted. Nutlets unknown. Fl. Jul.

* Grasslands, thickets; ca. 3800 m. Yunnan.