Scop., Intr. Hist. Nat. 308 (1777).
Derivation: Arabic saisaban, sisaban, the name of S. sesban.
Synonymy: Not Applicable
Common name: None
Woody herbs but commonly annual; leaves alternate, paripinnate; leaflets linear-oblong, with obtuse-apiculate apices, on short petiolules; stipules often caducous, minute or absent; hairs when present basifixed.
Racemes short, in the upper axils, 1-30-flowered; bracts soon deciduous; bracteoles at the base of the upper part of the pedicel which broadens below the calyx-tube; calyx cup-shaped when young, later spreading, campanulate, persisting for some time, rarely slightly bilabiate; teeth deltoid, with short or long inrolled subulate apices; petals commonly yellow, rarely blue or reddish, often variegated or spotted; standard with a broad emarginate limb on a short claw and paired calli; wings obliquely oblong; keel with long narrow claws about as long as the obliquely triangular limb; upper stamen free, other 9 united in an open tube; anthers equal and grouped around the stigma; ovary usually glabrous or the style hairy, ovules many; style curved.
Pod long, subterete, 2-valved, many-seeded, with transverse partitions between the seeds, style persistent and forming a sharp point; seed oblong-turgid, exarillate.
About 70 species in the tropics and subtropics of both Hemispheres, especially in Africa; 10 native to northern Australia, 7 of which am endemic. (Burbidge (1965) Aust. J. Bot. 13:103-141.) Sesbania peas.
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