Sesbania procumbens (Roxb.) Wight & Arn.
Prostrate or ascending herb; stem prickly, striate or 6-ribbed, green-reddish. Leaves abruptly pinnate, paripinnate; leaflets 11 - 19 pairs, oblong, 05 - 2.5 x 01 - 1.5 mm, oblique, rounded at base, entire at margin, with bright reddish, retuse, mucronate at apex, glabrous; nerves less; petiole 0.2 mm long, glabrous; rachis 2 - 3 long, 6-ribbed, prickle; stipules narrowly lanceolate, 5 mm, truncate at base, acuminate at apex. Racemes axillary short, up to 2 cm long. Flowers c. 6 mm across, yellow, 1 - 2-flowered, rarely 3-flowered; pidiecl 1 mm; bract lanceolate 3.5 mm; bracteoles elliptic 1.5 mm, cuneate at base. Calyx campanulate; lobe 5, short, subqual, 5 mm. Petals 5, exserted; standsrd suborbicular, 7 mm, emarginate at apex; wings oblong, 7 mm, truncate at apex; keels obovate, falcate. 5 mm, obtuse at apex, blueish-pink. Stamens 10, diadelphous, darsifixed; filament 4.5 mm; anther ovoid, c. 0.2 mm. Ovary sessile, 05 mm; 2-loculed; many ovules; style 05 mm long; stigma capitate, small. Pod linear, cylindric, 8 cm long, flattened, septate between seed; seeds ca. 19, oblong, 2 mm, glabrous.