Prostrate to erect shrub 0.5-3 m high. Leaves 1.5-5 cm long, 15-65 mm wide, pinnatisect to pinnatipartite or pinnatifid with strongly divaricate lobing; primary lobes 3-7, these usually again 2-or 3-partite, occasionally with sparing tertiary division; ultimate lobes linear to oblong or triangular, 0.3-2 cm long, 1-9 mm wide, pungent; margins revolute or recurved; lower surface mostly or wholly enclosed. Conflorescences terminal, on decurved peduncles; unit conflorescence a loose, sometimes subsecund, 2-10-flowered cluster, ?acropetal; ultimate rachis 1-5 mm long, subsericeous, flattened, usually flexuouse. Flowers ±acroscopic. Perianth loosely hairy outside with appressed biramous and erect-simple glandular hairs, pilose inside. Pistil 15-20 mm long, glabrous or rarely with appressed hairs on dorsal side of ovary; ovary with a ridge on either flank. Follicles 10-14 mm long, glabrous, tuberculate, sometimes with a faint ridge on each flank next to the suture in the distal half.
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