|
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
| Related Links (opens in a new window) |
|
Treatments in Other Floras @ www.efloras.org
Other Databases
|
|
|
|
|
|
|
