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FOC | Family List | FOC Vol. 10 | Fabaceae

111. Dolichos Linnaeus, Sp. Pl. 2: 725. 1753.

镰扁豆属 lian bian dou shu

Authors: Delin Wu & Mats Thulin

Herbs or shrubs, erect, climbing or prostrate, sometimes with carrotlike woody rhizomes. Leaves pinnately 3-foliolate, sub­digitate, or 1-foliolate; stipules basifixed; stipels present. Racemes axillary or terminal, sometimes subumbellate, or flowers solitary, axillary. Calyx 5-toothed, 2-lipped, upper lip entire or bifid, lower lip 3-toothed. Corolla white or purple; petals clawed; standard suborbicular, often with inflexed auricles and appendages at base; wings obovate or oblong, ± adherent to keel; keel incurved, often beaked but not twisted. Vexillary stamen free, remainder connate into an open sheath; anthers uniform. Ovary 3-12-ovuled; disk present; style swollen and ± twisted toward base or narrowed from base to tip, glabrous or shortly pubescent all over, or with a ring of hairs around terminal capitate stigma. Legumes straight or arcuate, flattened, not septate. Seeds ± flattened, arillate or strophiolate; hilum short, usually central.

About 60 species: distributed in Africa and Asia; four species in China.

1 Leaves glabrous or almost so on both surfaces.   1 D. trilobus
+ Leaves hairy on both surfaces or abaxially   (2)
2 (1) Standard up to 1.2 cm.   2 D. tenuicaulis
+ Standard 1.5 cm or more   (3)
3 (2) Leaflets ovate-rhombic, 6-7 × 4-6 cm, apex acuminate and apiculate; corolla white with purple striae.   3 D. thorelii
+ Leaflets broadly rhombic-ovate or ovate, 10-11 × 9-9.5 cm, apex acute or slightly obtuse; corolla purple.   4 D. junghuhnianus

Lower Taxa


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