49. Indigofera myosurus Craib, Notes Roy. Bot. Gard. Edinburgh. 8: 58. 1913.
华西木蓝 hua xi mu lan
Shrublets, erect, 0.8-1.2 m tall, many branched. Branches brown, angular, with appressed white medifixed 2-branched trichomes. Stipules linear, ca. 5 mm. Leaves 5-8.5 cm, 11-19-foliolate; petiole 5-10 mm; rachis adaxially flattened, slightly winged, with appressed white medifixed trichomes; stipels ca. 1 mm; petiolules ca. 1 mm; leaflet blades opposite, elliptic-obovate, 1-1.8 × 0.4-0.8 cm, papery, both surfaces with sparse appressed medifixed trichomes, abaxially with longer trichomes, midvein prominent on both surfaces, secondary veins 4-6 on each side of midvein and abaxially visible, base broadly cuneate to obtuse, apex rounded to obtuse and mucronate. Racemes 4-9 cm, laxly flowered; peduncle 0.8-1.6 cm, with sparse medifixed trichomes; bracts linear, 2-2.5 mm, caducous. Pedicel 2-5 mm, deflexed in fruit. Calyx 4-5 mm, outside with appressed white medifixed trichomes; tube 1.5-2 mm; teeth lanceolate, 2-3 mm, apex acuminate. Corolla light pink; standard obovate, 8-10 × 5-6 mm, outside minutely puberulent, base rounded, apex rounded to acute; wings 7-9 × ca. 2.5 mm, margin ciliate; keel 7-10 mm, apex acute. Stamens 8-9 mm; anthers ovoid-globose, base densely hairy. Ovary hairy. Legume brown, cylindric, 2.5-3 cm, with sparse appressed medifixed trichomes; endocarp blotched. Fl. May-Jun, fr. Aug.
● Hill slopes, forest margins; 1600-2800 m. Sichuan, N Yunnan.