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FOC | Family List | FOC Vol. 10 | Fabaceae | Indigofera

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.


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