Shrub, stem single, erect, 40 cm-2 m tall, more or less rigid, ultimate branchlets short, fairly stout, very rough with tubercle-based, tufted bristles (long or short, 2 to many). Stipules about 1.7-7 mm long, rounded to broadly cordate at usually oblique base, decurrent on one side, abruptly narrowed into a linear-acute to subulate apical portion. Leaves sessile or subsessile, crowded, 1 or more at a node, different sizes at a node, size of leaf varies considerably on different plants too; blade oblong-cuneate, 5-30 mm long, 1-20 mm broad, rounded, subtruncate, lobed or emarginate at apex, rarely apiculate, broadly cuneate at base, incurved and crenate and crisped on margins, upper surface minutely papillose and scaly stellate-pubescent or with tubercle-based hairs, lower surface finely white stellate-tomentose between the veins and sparsely stellate on veins; midrib and about 3 suberect lateral veins prominent beneath; petiole 0-4 mm long. Inflorescence terminal on ultimate branchlets of simple or paniculate cymes, short, up to 30 mm long, 3 to 15-flowered; bracts like stipules but smaller, 2, 3 or 4 at a node; pedicels 4-8 mm long. Calyx submembranous with strong nerves, 5-6 mm long, lobed almost to middle, glabrescent except along nerves which are sparsely pubescent with bulbous-based hairs, lobes sometimes rather densely ciliate with soft hairs and hairy on inner face. Petals yellow turning red, 6-9 mm long, 4 mm broad in upper half, narrowed just below middle into a claw, margins of claw fairly broadly infolded. Stamens cohering or joined at base, free portion about 5 mm long; filaments hyaline, oblong-cuneate, obscurely hairy on shoulders; anthers pointed, ciliate. Ovary stellate-pubescent, shortly stipitate; styles about 3.5 mm long. Capsule small, 4-5 mm long, subglobose, densely stellate-pubescent (hairs longer towards apex), 5-umbonate.
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Stiffly hairy, erect shrublet, up to 1 m tall. Leaves crowded, 1 or more per node, oblanceolate to obovate, coarsely toothed, margins revolute. Flowers in dense terminal clusters, yellow fading reddish.
Stiffly hairy, erect shrublet to 1 m. Leaves oblanceolate to obovate, coarsely toothed, margins revolute. Flowers in dense, terminal clusters, yellow fading reddish.