Pleiospermium alatum - Winged Naringi

Winged Naringi is a hairless tree, armed with single in leaf-axils spines; bark grey, warty. Leaves trifoliate, alternate, estipulate; axis 1.0-3.9 cm, hairless, winged, articulated; leaflet-stalk upto 2 mm; leaflets 2.5-6.5 x 1-3 cm, obovate or inverted-lanceshaped, base narrowed, tip broadly round and notched, margin entire, hairless, dotted, leathery; lateral nerves 3-8 pairs, pinnate, archingly joined towards the margin, slender, slightly raised beneath, intercostae netveined. Flowers are small, bisexual, white, borne in leaf-axil panicles, flower-cluster-stalks and flower-stalks velvet-hairy. Sepals are 4 or 5, free, ovate, finely velvet-hairy. Petals are 4 or 5, ovate-oblong, glandular-dotted, hairless or shortly velvet-hairy, white, overlapping; stamens 8 or 10, unequal, filaments linear, subulate, hairless, anthers linear-oblong, sometimes apiculate; disc annular; ovary obovoid, smoothly glandular, hairless, 4 or 5 locular; ovules 2 in each locule; stigma capitate. Fruit is a berry, subspherical, like a small orange, pericarp rough, glandular pulp mucilaginous, aromatic; 1-2 seeded, seeds ovoid, flattened with a hard and smooth testa. S. India, Sri Lanka, Andaman Islands. Flowering: February-May.