Shrubs to 1.5 m tall with many branches arising from near the base. Branches spreading-erect, often ternate, with a smooth brown bark. Branch-lets numerous, slender, erect, short, minutely puberulous, leafy. Leaves 1.8-5 mm long, 0.7-1 mm broad, linear, straight, obtuse, sub-terete, adpressed-erect, alternate; apex somewhat callused, very short-pubescent; margins obscure; abaxial surface rounded with two rows of gland dots. Inflorescence terminal solitary or twin, sessile, white. Bract 0.9 mm long, 0.7 mm broad, sub-deltoid; apex obtuse with a small pubescent callus; adaxial surface somewhat adpressed pubescent; abaxial surface gland-dotted, puberulous towards the margins. Bracteoles two, 0.7 mm long, 0.5 mm broad, sub-ovate, gland-dotted, puberulous. Calyx sparsely puberulous. Calyx lobes five, 1.3 mm long, 1.2 mm broad, deltoid; margins crisped ciliolate, translucent below; adaxial surface velvety pubescent; abaxial surface gland-dotted, sparsely puberulous. Petals five, 2.2 mm long, 1.3 mm broad, elliptic, obtuse, arising on a lobe of the disc; margins minutely serrulate, irregularly ciliolate above; abaxial surface sparsely puberulous mainly towards the midrib and apex. Staminodes none. Filaments five, becoming 1.5 mm long, acicular, glabrous. Anthers five, before anthesis 0.8 mm long, 0.6 mm broad, somewhat scabrid, yellow; apical gland 1.2 mm diam., sessile. Pollen 52 µ long, 23 µ broad, oblong. Disc 5-sinuate-crenulate, stands wide open, exceeds the ovary by a long way, green, exudes nectar. Stigma 0.25 mm diam., capitellate, globose, green. Style at first deflexed, becoming 1.5 mm long, slender, glabrous. Ovary 5-carpellate, 0.8 mm diam., 0.6 mm long, glabrous; apices obtuse. Fruit 5-carpellate, 8 mm long, glabrous, gland-dotted; horns 3 mm long, spreading with an immersed gland at the apex. Seed 7 mm long, 2.5 mm broad, black, matt, somewhat bean-shaped.
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Finely leafy, aromatic shrub to 1.5 m, many-branched from base. Leaves sessile, linear-subterete, obtuse or with an apical callus. Flowers terminal, solitary or paired on loosely clustered, short branchlets, white, petals minutely pubescent outside.