Syncolostemon rotundifolius E.Mey. ex Benth.

Soft shrub 0.6-2 m tall, sparingly branched; stems white tomentulose. Leaves petiolate; blade broadly elliptic or broadly obovate to subrotund, 10-25 x 6-18 mm, tomentulose and gland-dotted, apex rounded, base cuneate to obtuse, margin entire or faintly crenate-dentate above the middle; petiole 2-5 mm long. Inflorescence a fairly dense panicle, rarely simple, 50-80 mm long and up to 60 mm in diameter; verticils 2-flowered; bracts 3-5 x 3-4 mm. Calyx cylindrical, 9-10 mm long; teeth subequal, deltoid, the uppermost often slightly shorter than the rest; tube glabrous in the throat. Corolla mauve, pink or magenta-pink, 23-27 mm long; tube 20-23 mm long, gradually widening to 5-6 mm at the mouth; lower lip 3-5 mm long, deflexed at maturity. Stamens well exserted; 2 upper filaments attached below the middle of the corolla tube, pubescent near the base. Style well exserted.