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

60. Indigofera delavayi Franchet, Pl. Delavay. 154. 1889.

滇木蓝 dian mu lan

Indigofera daochengensis Y. Y. Fang & C. Z. Zheng.

Shrubs to 2 m tall. Stems pinkish brown, angular when young, with very sparse appressed medifixed symmetrically 2-branched trichomes, glabrescent. Stipules subulate, 5-7 mm, persistent, base thickened. Leaves 8-18 cm, (13 or)15-19-foliolate; petiole 3-4 cm; rachis terete, flattened, or adaxially grooved, glabrous; stipels subulate, 1-1.5 mm; petiolules ca. 2 mm, with dense appressed medifixed trichomes; leaflet blades opposite, oblong to slightly obovate, 1.3-3 × 0.8-1.3 cm, papery, abaxially with sparse appressed short medifixed tri­chomes, adaxially glabrous or subglabrous, midvein abaxially prominent and adaxially impressed, secondary veins 6 or 7 on each side of midvein, base broadly cuneate to rounded, apex rounded, truncate, or emarginate and mucronate. Racemes ca. 20 cm, laxly flowered; peduncle and rachis with sparse ap­pressed medifixed trichomes; peduncle 1.5-2.5 cm; rachis an-gular; bracts linear, ca. 5 mm. Pedicel ca. 1.5 mm, deflexed in fruit. Calyx ca. 3 mm, with appressed minute trichomes; teeth triangular, apex acuminate. Corolla white or pink; standard broadly elliptic, 1.2-1.5(-1.8) cm, outside with sparse ap­pressed minute soft trichomes, base shortly clawed, apex ob­tuse; wings 1.1-1.2 cm, base clawed and auriculate, margin cili­ate; keel 1.3-1.4 cm, outside apically hairy, margin ciliate. Sta­mens 1.3-1.7 cm; anthers ellipsoid, ca. 1.5 mm, both ends hairy. Ovary glabrous, with 14 or 15 ovules; stigma with white trichomes. Legume linear, cylindric, 4-5(-6) cm, glabrous, curved upward at apex, sutures thickened. Fl. Jul-Sep, fr. Aug-Sep.

● Grasslands, scrub, forests, riverbanks; 1400-3400 m. SW Si­chuan, N Yunnan.


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