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

47. Indigofera lacei Craib, Bull. Misc. Inform. Kew. 1910: 382. 1910.

思茅木蓝 si mao mu lan

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

Shrublets, 80-100 cm tall. Stems slightly terete, striate; young branches with dense spreading primarily basifixed asym­metrically 2-branched long trichomes, glabrescent. Stipules lin­ear, 5-10 mm. Leaves ca. 11 cm, 17-25-foliolate; petiole 5-10 mm; rachis adaxially flattened; stipels linear, as long as petio­lules; petiolules 1.5-2 mm; leaflet blades opposite, oblanceolate to oblong, 7-15 × 4-6 mm, papery, both surfaces with ap­pressed white medifixed trichomes, base broadly cuneate to rounded, apex obtuse to rounded and mucronate. Racemes ca. 16 cm; peduncle ca. 3 cm, with brown trichomes; bracts cadu­cous. Pedicel 3-4 mm. Calyx tube ca. 1.5 mm; teeth triangular, ca. 0.5 mm. Corolla dark purple; standard broadly oblong, ca. 8 × 6 mm; wings as long as keel. Stamens 6.5-7 mm; anthers ovoid, glabrous. Ovary glabrous. Legume purple, 3-3.5 cm, gla­brous. Seeds cubic, ca. 2 mm. Fl. Sep, fr. Nov.

Moist thickets; ca. 1400 m. S Yunnan [India, Myanmar, Thailand].


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