微齿山梗菜 wei chi shan geng cai

Lobelia seguinii H. Léveillé & Vaniot var. doniana (Skottsberg) F. E. Wimmer.

Herbs, perennial, 0.3-2.4 m tall. Stems erect, up to 1.5 cm in diam., branched above, glabrous or variously shortly pubescent above. Cauline leaves alternate, at least lower ones petiolate; petiole cuneate-winged, up to 3 cm; blade elliptic to linear-elliptic, 6-33 × 1-6 cm, abaxially sparsely hispidulous, adaxially glabrous or sparsely minutely pubescent, base cuneate, margin serrulate, apex acuminate. Racemes terminal, paniculate; lower bracts leaflike, gradually smaller up stems; pedicels 3-15 mm, usually bibracteolate, densely hispidulous. Hypanthium campanulate, oblong, or obconic, scaberulose; calyx lobes linear or linear-triangular, 7-22 mm, with (1-)4-7 teeth on each side. Corolla bilabiate, purple, purple-red, rose-purple, or blue-purple, 20-31 mm, outside scaberulose below, inside villous; upper 2 lobes linear, slightly longer than lower 3. Filaments connate above base, filament tube glabrous or sparsely shortly pubescent; anther tube glabrous or white hirsute only at base; lower 2 anthers barbate at top. Capsule oblong or ellipsoid, 8-16 × 4-9 mm. Seeds ellipsoid, finely striate. Fl. and fr. Sep-Nov.

Grassy slopes, forest margins, glades; (800-)1400-3200 m. Xizang (Nyalam), Yunnan [Bhutan, N India, N Myanmar, Nepal].

This species is very similar to Lobelia seguinii, differing primarily in its increased pubescence and toothed calyx lobes.