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

53. Indigofera balfouriana Craib, Notes Roy. Bot. Gard. Edin­burgh. 8: 48. 1913.

丽江木蓝 li jiang mu lan

Indigofera dielsiana Craib.

Shrubs, 0.6-2 m tall. Old stems blackish brown, angular; young branches brown, angular, with spreading or subspreading mixed appressed pale brown or white 2-branched trichomes, glabrescent. Stipules narrowly lanceolate, 3-6 mm, hairy. Leaves 3-9 cm, 5-9-foliolate; petiole and rachis terete, adaxi­ally grooved, with spreading curly medifixed trichomes; petiole 1-2.3 cm; stipels subulate, ca. 1 mm; petiolules ca. 1.5 mm, hairy; leaflet blades opposite, elliptic, 0.6-2.6 × 0.4-1.3 cm, papery, both surfaces with ± spreading white medifixed tri­chomes, midvein abaxially prominent and adaxially impressed, secondary veins not visible, base broadly cuneate to rounded, apex rounded to emarginate and with a ca. 0.3 mm mucro. Racemes 2-6 cm; peduncle and rachis with spreading medi­fixed trichomes; peduncle 0.5-1.5 cm; bracts ovate, ca. 3 mm, abaxially with spreading trichomes. Pedicel 1-3 mm, with spreading white 2-branched trichomes. Calyx 2-3 mm, with spreading submedifixed to subbasifixed 2-branched trichomes; tube 1-2 mm; teeth lanceolate, 1-1.5 mm. Corolla red to pur­ple; standard nearly rounded, 6-9.5 × 5-6 mm, sessile, outside with spreading white soft trichomes, apex slightly emarginate; wings 7-9.5 × ca. 2 mm, base auriculate, margin ciliate; keel 7.5-8.5 mm, outside apically with sparse spreading white tri­chomes, margin ciliate, spur ca. 1 mm. Stamens (5.5-)6-7 mm; anthers ovoid-globose, glabrous. Ovary densely white hairy, with 10 or 11 ovules. Legume brown, cylindric, 2.5-4 cm, hairy; endocarp blotched. Seeds 6-10 per legume. Fl. Apr-Jul, fr. Jul-Sep.

● Scrub, forests; 2100-3000 m. Sichuan, S Xizang, W Yunnan.


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