Perennial shrub 0.3–1.5 m tall; stems 4-angled, scabrous. Leaves opposite, becoming alternate below inflorescence, lanceolate, mostly 60–100 mm long, 13–25 mm wide, scabrous, sessile or shortly petiolate, margins serrate or biserrate; bracts lanceolate, 5–15 mm long, green, serrate; bracteoles linear-lanceolate, to 0.5 mm long, entire, deciduous, brown. Inflorescence 3–7-flowered; pedicels 0.7–1.5 mm long; sepals 4, green or reddish, ovate to triangular, 0.6–1 mm long; petals 4, yellow-green or reddish, 2.4–3.3 mm long; stamens 8; ovary 4-celled, obpyriform, 0.5–0.8 mm long, 4-angled, scabrous, styles 4. Fruit ovoid to obpyriform, usually 1–3 per axil, 2–2.8 mm long, 1.5–2 mm diam., green or reddish, 4-ribbed, smooth or weakly transversely rugose, minutely and sparsely scabrous. Flowers mainly Oct.–Mar.
GleP, VVP, WaP, Gold. Also NSW. Apparently confined to the south-west coast between the Glenelg River and Curdies River where it grows in damp riparian habitats.
