Sweetly malodorous, usually single-stemmed, erect or sometimes spreading to straggling viscid shrub to 3 m high, pubescent with glandular hairs. Branches green and viscid on current season’s growth, pubescent with inconspicuous glandular hairs, the surface soon becoming glabrous and wrinkled. Leaves borne singly, ± uniform in size, subsessile; lamina obovate to narrowly so, less commonly ovate, with usually broadly rounded, sometimes bluntly to angularly obtuse, rarely apiculate or emarginated apex, 20–60 mm long, usually 10–30 mm wide (rarely to 44 mm wide), with minutely serrulate-crenulate margin, thick and firmly fleshy, moderately to densely punctate above and below, each depression containing one shortly stalked glandular hair 0.05–0.1 mm long, the surface usually viscid but sometimes with a whitish bloom caused by the dried exuded resins. Flowers in axillary, pedunculate 1–3-flowered cymes, each pedicel subtended by a pair of subopposite bracts and articulated slightly above these; bracts 2.0–8.5 mm long, 0.5–1.7 mm wide; pedicels 5–15 mm long. Calyx 3–15 mm long. Corolla 20–40 mm long (rarely to 48 mm), white to creamy-white, the striations green or purplish; tube rim with a corona formed of 4 swellings below each lobe; lobes ovate-triangular to linear, 12–25 mm long, 3.5–10.5 mm wide (rarely to 15 mm wide), spreading to slightly downcurved, sometimes with pale purple streaks on the underside, with flat margins. Stamens: longer pair 6–12.5 mm long, shorter pair 4.5–10 mm long. Capsule ovoid-ellipsoid to ellipsoid, acute or apiculate, 8–19 mm long. Seeds 18–31 in all, 1.8–3 mm long.
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