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FOC | Family List | FOC Vol. 10 | Fabaceae


决明族 jue ming zu

Authors: Dezhao Chen, Prof. Dianxiang Zhang & Kai Larsen

Leaves paripinnate or imparipinnate, rarely bipinnate. Flowers bisexual, polygamous, or plants dioecious, actinomorphic or zygomorphic. Receptacle cup-shaped. Sepals 4 or 5, rarely 3 or 6, imbricate. Petals usually 5, sometimes 3, rarely absent. Stamens various in number, sometimes with staminodes; anthers basifixed, rarely dorsifixed, opening by apical pores or by lateral short slits. Ovary or ovary stipe inserted at base of receptacle, free; ovules 2 to numerous, rarely solitary.

About 21 genera and 730-740 species: mainly distributed in the tropics and subtropics; four genera and 21 species (15 introduced) in China.

1 Leaves imparipinnate; leaflets alternate.   9 Zenia
+ Leaves abruptly pinnate; leaflets opposite   (2)
2 (1) Petioles and rachis of leaves without glands; stamens 10, filaments of 3 abaxial antisepalous stamens sigmoidally curved, usually longer than anthers; legume indehiscent.   10 Cassia
+ Petioles and rachis of leaves with or without glands; stamens 10 or 5 fertile, filaments straight; legume dehiscent or indehiscent   (3)
3 (2) Bracteoles absent; petals subequal; legume either indehiscent or inertly dehiscent through 1 or both sutures, if latter, not coiling, or valves breaking up into 1-seeded joints.   11 Senna
+ Bracteoles present; petals unequal; legume elastically dehiscent, valves coiling.   12 Chamaecrista

Lower Taxa


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