Much-branched shrub 1 m. high, probably annual; stem pubescent with crisped brown hairs.. Leaves sessile, lanceolate, to 8.5 × 1 cm., base cuneate, apex apiculate, entire, glabrous.. Cymes axillary and in terminal 5-branched umbels forking many times, with primary rays to 8 cm. long; bracts sessile, deltoid, ± 1.5 × 1.5 cm., margin entire, apex apiculate, the bracts of the umbel ± similar to the leaves.. Cyathia subsessile, ± 3 × 4.5 mm. excluding the gland-processes, with cup-shaped involucres, glabrous; glands 4, spreading, transversely rectangular, ± 1.2 × 1.5–2.5 mm., 2 horned and with the margin between entire, or irregularly crenulate, or more usually with 1–4(–8) finger-like processes similar to the horns, horns and processes to 1.5 mm. long; lobes subquadrate, ± 1.2 × 1 mm., apex deeply and irregularly toothed, margin ciliate towards the base.. Male flowers: bracteoles linear, apex minutely ciliolate; stamens 4.5 mm. long.. Female flower: ovary glabrous; styles 3 mm. long, joined for 0.8 mm., deeply bifid.. Capsule exserted on a reflexed pedicel 3 mm. long, obtusely 3-lobed, ± 5 × 5 mm.. Seeds ovoid, 2.5 × 2 mm., smooth, becoming black, with a caruncle 1 mm. across.
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