Tamilnadia uliginosa (Retz.) Tirveng. & Sastre

Deciduous trees, to 7 m high, bark reddish-brown; branchlets 4 angled, terminating with one or two pair of sharp thorns. Leaves simple, opposite, decussate; stipule interpetiolar, 3-5 x 5-7 mm, broadly triangular, acuminate; petiole 5-10 mm, stout, glabrous; lamina 5-18 x 2-8 cm, obovate, oblanceolate or obovate-oblong, base cuneate or attenuate, apex obtuse or round, margin entire, glabrous above and pubescent and glaucous beneath; lateral nerves 5-10 pairs, pinnate, prominent beneath; intercostae reticulate, slender; domatia present. Flowers bisexual, white, 5 cm across, solitary, at the end of branchlets, dimorphic with large and sessile, small and stalked; calyx tube 1-1.2 x 0.3-0.4 cm, turbinate, silky pubescent at throat, lobes 5, suborbicular; corolla tube short, lobes 5, large, spreading, orbicular, hairy at mouth, imbricate; stamens 5; anthers linear; ovary 2-celled, inferior, ovules many; style stout; stigma thick, 2 lobed. Fruit a berry, 4-5 x 2.5-3.5 cm, ovoid or ellipsoid, smooth, yellow; seeds smooth, compressed.