Shrub 1-2.5 m tall. Branchlets softly and densely tomentose, or rarely almost glabrous. Leaves (2-) 3-9 cm long, divaricately 3-partite (almost-sect), the lateral lobes sometimes again 3-partite, occasionally leaves biternate, or some or all simple and entire; simple leaves and lobes linear, (0.8-) 1.5-4 (-7) cm long, (0.7-) 1.0-2.8 mm wide; apices pungent; margins angularly or occasionally smoothly revolute to midribs of leaf and lobes; lower surface 2-grooved, usually narrowly exposed at sinuses and node bases, glabrous to hairy. Unit conflorescence acropetal, subglobose to shortly conical or narrowly conico-cylindrical; floral rachis subvillous. Flower colour: perianth and style white; buds pale green, at least on limb. Perianth glabrous outside. Pistil 3-4 mm long; stylar swelling ovoid; pollen-presenter conical to truncate-conical, base usually distinctly broader than apex of style. Follicles obloid-ellipsoidal, 7-10 mm long, almost smooth to faintly rugose with rounded bumps.
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