Wrightia pubescens subsp. penicillata (F.M.Bailey) Ngan
Ngan, P.T. (1965) Annals of the Missouri Botanical Garden 52: 153.
Grows into a small tree but also flowers and fruits as a shrub. Bark exudate copious.
Flowers about 20-30 mm diam., emitting an unpleasant odour. Inflorescence about 4-5 cm long, shorter than the leaves. Calyx lobes about 2.5 mm long. Five ovate glands each about 0.5-0.6 mm long attached to the inner surface of the calyx lobes. Corolla tube subcylindrical to campanulate, constricted at the orifice, about 5-6.5 mm long, lobes narrowly obovate to obovate, about 10-20 mm long, puberulent. Corona dentate to crenulate. Staminal filaments less than 1 mm long, almost as wide as the base of the anther. Anthers about 6 mm long, broad at the base and tapering to the apex. Ovaries glabrous, about 1.5 mm long. Style about 7 mm long.
Cotyledons cordate-reniform, about 18-22 x 17-21 mm, somewhat asymmetrical, the midrib closer to one side than the other. Base shallowly cordate top truncate. Lower surface clothed in minute hairs, white hairs are restricted to the midrib on the upper surface. First leaves ovate, apex acute to acuminate, base obtuse. Hypocotyl clothed in hairs. At the tenth leaf stage: leaf blade +/- elliptical, apex acuminate with a slightly thickened tip, base obtuse. Midrib hairy, raised in a depression on the upper surface of the leaf blade. Very small oil dots visible with a lens. Stipules small, filiform-linear, about 0.8 mm long. Stem broader and flatter at the nodes than at the internodes.