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

2. Dysolobium pilosum (Klein ex Willdenow) Maréchal, Bull. Jard. Bot. Natl. Belg. 47: 483. 1977.

毛镰瓣豆 mao lian ban dou

Dolichos pilosus Klein ex Willdenow, Sp. Pl. 3: 1043. 1800; D. rhombifolius (Hayata) Hosokawa; Dolichovigna for­mosana Hayata; D. pilosa (Klein ex Willdenow) Niyomdham; D. rhombifolia Hayata; Vigna pilosa (Klein ex Willdenow) Baker.

Vines, herbaceous, twining. Leaves pinnately 3-foliolate; stipules deciduous; petiole 1.5-6 cm; terminal petiolule 5-12 mm, densely white villous; leaflets subequal, both surfaces vil­lous, lateral veins 3 or 4 pairs; terminal leaflet narrowly ovate or triangular-ovate, 4-16 × 2-6 cm, base obtuse, apex acumi­nate; lateral leaflets subequal at both sides, oblique, base almost truncate, apex acuminate. Raceme axillary, 2-7 cm, upper part with many flowers. Calyx broadly campanulate, exterior densely pubescent, 5-lobed; upper 2 lobes connate, middle lower lobe ca. 4 mm, laterals small; tube ca. 4 mm. Standard broadly ovate, ca. 1.4 × 1.6 cm, apex emarginate, slightly reflexed, shortly clawed and with auricle at base; wings obovate, ca. 2 × 1.2 cm, apex obtuse, emarginate, base clawed, with auricles, ca. 1 mm; keels falcate, base wider, upper acute, near base with a triangu­lar dentiform auricle, clawed. Stamens subequal, ca. 1.8 cm. Style ca. 1 cm. Legume 7-13 × 0.6-0.8 cm, leathery, densely brown villous, apex beaked, dehiscent along 2 sutures. Seeds 5-12, black, oblong, 5-6 × 3-4 mm; hilum oblong. Fl. Sep-Oct, fr. Oct-Nov.

Open forests; near sea level to 700 m. Taiwan [Bhutan, Cambodia, India, Laos, Philippines, Thailand, Vietnam].


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