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FOC | Family List | FOC Vol. 10 | Fabaceae

163. Trigonella Linnaeus, Sp. Pl. 2: 776. 1753.

胡卢巴属 hu lu ba shu

Annual or perennial herbs. Stem erect, spreading or prostrate, much branched. Leaves pinnately 3-foliolate; stipules adnate to petiole, conspicuously veined; terminal leaflet usually larger, margin ± serrulate or incised, lateral veins running out into teeth. Inflo­rescence axillary, shortly racemose, capitate, subumbellate, or flower solitary; peduncles elongate in fruit. Pedicels short, often less than 5 mm, thickened after flowering; bracts minute; bracteoles absent. Calyx teeth ± equal. Petals yellow, blue, purple, or white, free from staminal tube; standard obovate or oblong, broad at base, sometimes broadly clawed; wings elliptical; keel obtuse, shorter than wings. Stamens diadelphous or nearly monadelphous; filaments not dilated; anthers uniform. Legume straight, falcate, or arcuate, compressed or terete, tapering at both ends, with reticulate coat. Seeds 1 to many, scabrous, warty or pitted.

About 55 species: mostly in Africa, Asia, Europe, Mediterranean region, and Oceania; eight species (two introduced) in China.

1 Perennial herbs; legume linear-oblong   (2)
+ Annual herbs; legume cylindric or ovoid   (5)
2 (1) Wings shorter than keel   (3)
+ Wings longer than keel   (4)
3 (2) Corolla 10-12 mm; branches erect, arising from subshrubby base.   3 T. cachemiriana
+ Corolla 7-9(-10) mm; branches prostrate to ascending, arising from large woody base.   4 T. pamirica
4 (2) Legume covered with oblique veins; standard suborbicular, equal to wings; leaflet margin sparsely serrate.   1 T. emodi
+ Legume covered with crosswise veins; standard long obovate, reflexed, slightly longer than wings; leaflet margin densely biserrate.   2 T. fimbriata
5 (1) Legume conical or ovoid, more than 2.5 mm wide; plants over 30 cm   (6)
+ Legume linear-cylindric, less than 2 mm wide; plants under 30 cm   (7)
6 (5) Legume ovoid, 2.5-5 mm; inflorescence long pedunculate, capitate, with 10-25 flowers; petiole 10-40 mm.   7 T. caerulea
+ Legume linear-cylindrical, straight or slightly falcate, 70-120 mm; inflorescence subsessile, flowers solitary or in pairs; petiole 6-15 mm.   8 T. foenum-graecum
7 (5) Peduncles as long as leaves or longer, usually over 15 mm.   5 T. cancellata
+ Peduncles shorter than leaves, usually under 10 mm.   6 T. arcuata

Lower Taxa


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