Syncolostemon macranthus (Gürke) Ashby

Shrub 1-2.5 m tall, much branched; stems hispidulous. Leaves petiolate; blade ovate to ovate-lanceolate, 20-45 x 12-20 mm, scabrid, gland-dotted, apex acute to obtuse, base obtuse to cuneate, margin obscurely crenate-dentate; petiole 2-8 mm long. Inflorescence usually paniculate, 80-180 mm long, fairly dense to lax; verticils 4-6(rarely 2)-flowered, 4-18 mm apart; bracts 3-5 x 3-4 mm. Calyx cylindrical, 9-10 mm long, densely glandular-puberulous, with the uppermost tooth obovate-elliptic, 2-2.5 mm long, distinctly larger than the lower 4 narrowly deltoid teeth. Corolla pink to pale mauve or purple, 25-30 mm long; tube 20-25 mm long, gradually widening to 5-6 mm at the mouth; lower lip 3-5 mm long, usually deflexed at maturity. Stamens well exserted, often coiled; 2 upper filaments inserted about the middle of the corolla tube, glabrous. Style well exserted.