Thunbergia neglecta Sond.

Scrambler, pubescent. Leaves petiolate, petioles 9-30 mm long; blade ovate, (12-)29-47(-57) x (13-)20-47(-55) mm, apex acute, obtuse or emarginate, base cordate, margin entire, lobed or toothed. Flower bracts persistent; 11-20 x (5-)8-14 mm. Calyx with lobes 2-6 mm long; lobes subuliform, sometimes toothed, stipitate glands and a few unicellular trichomes present. Corolla with inner surface and outer surface of lobes and outer surface of tube dull white, inner surface of tube dull yellow; lobes 9.5-4.5 x 13-23 mm; tube 17-27 mm long, 2-3 mm in diameter. Filaments 4-6 mm long; anther thecae 2.4-3 mm long. Style 7-12 mm long, unicellular trichomes present on upper part. Fruit 13-20 mm long, globose base 6-10 mm in diameter. Seed reddish brown; trichomes adhere together to form comb-like protuberances on testa; 3.5-5.0 mm in diameter.