63. Indigofera sensitiva Franchet, Pl. Delavay. 157. 1889.
敏感木蓝 min gan mu lan
Shrubs, erect, 60-90 cm tall. Stems brown; young branches with sparse appressed medifixed symmetrically 2-branched trichomes. Stipules lanceolate, ca. 5 mm, with appressed medifixed trichomes. Leaves ca. 15 cm, 21-31-foliolate; petiole and rachis adaxially grooved, with appressed medifixed trichomes; petiole 1-2 cm; stipels subulate, ca. 1 mm; petiolules ca. 1 mm; leaflet blades opposite, narrowly lanceolate, 1.2-2 × 0.2-0.7 cm, thickly papery, abaxially pale green and with sparse appressed medifixed trichomes or glabrescent, adaxially green and with sparse appressed medifixed trichomes or glabrescent with isolated hairs along midvein, midvein abaxially prominent and adaxially flat, secondary veins 4 or 5 on each side of midvein and abaxially obvious, base rounded, apex acute and mucronate. Racemes 3-4 cm, shorter than leaves, many flowered; peduncle shorter than petioles, hairy; bracts linear-lanceolate, 1.5-2 mm, caducous, abaxially with appressed medifixed trichomes. Pedicel ca. 1 mm, hairy, reflexed in fruit. Calyx ca. 2.5 mm, with appressed medifixed trichomes; teeth triangular, as long as tube. Corolla purplish blue; standard broadly elliptic, ca. 5 × 3.5 mm, outside with appressed trichomes; wings ca. 4.5 mm; keel ca. 4.5 mm, spurred at middle. Stamens 3-4 mm; anthers ovoid-globose, glabrous. Ovary glabrous, with 7 or 8 ovules. Legume linear, cylindric, 2.5-3 cm, with sparse appressed medifixed trichomes; endocarp red blotched. Seeds 6 or 7 per legume, 2.5-3 × ca. 2 mm. Fl. Jun-Aug, fr. Sep-Nov.
● Grasslands, scrub, thickets; 1100-2400 m. NW Yunnan.