Hayun Lagu

Serianthes nelsonii is a tree in the Fabaceae (pea) family, to 20 to 36 m (66 to 118 ft) with a trunk to 2 m (6.6 ft) in diameter. Spreading-ascending branches with a moderately broad crown. The leaves are twice-pinnate, with 10 to 20 pairs of pinnae, each of which has 22 to 30 pairs of leaflets. The midribs have rusty-colored hairs and from a distance the leafy parts of the tree look rusty brown. Flowers occur in few-flowered panicles 5 to 10 cm (2 to 4 in) long with rusty hairs; the corolla is 15 to 23 mm (0.6 to 0.9 in) long and surrounds several long stamens. Fruits are 7 to 12 cm (2.8 to 4.7 in) long pods with a brownish hairy surface and slight constrictions between seeds. Seeds are hard, shiny, flattened, smooth and brown about 10 mm x 8 mm (0.4 in x 0.3 in).