Botanical name: Albizia lebbeck
Malayalam: nenmeenivaaka, vaaka
Tamil: vagai, vel-venkai
Medium to large tree with gray-brown bark; leaves bipinnate, the primary leaflets subopposite, 2-4 pairs; ultimate leaflets opposite, 6-8 pairs, oblong, slightly asymmetric, blunt, 2.5-4.5 cm long. Flowers mimosa-like, in showy, rounded clusters near stem tips, 5-6 cm (2-2.5 in) across, cream or yellowish-white, each flower with numerous long stamens. Fruit a flat, linear pod, to 30 cm (1 ft) long, with many seeds; dried pods persistent after leaf-fall, often heard rattling in the wind.