Acalypha lyonsii P.I.Forst.

Shrub, erect, virgate, to 4 m high. Branchlets lenticellate with age; flaky bark absent. Leaves with embedded glands on upper and lower surfaces; lamina elliptic, lanceolate or obovate, 3–30 mm long, 2–11 mm wide; base cordate to obtuse; margin crenate to sinuate; tip acute to retuse; venation penninerved with 4 or 5 lateral veins per side of midrib. Inflorescences axillary and solitary, racemose or spicate, unisexual. Male flowers: sepals ovate, 0.7–0.8 mm long; stamens 12. Female flowers ± sessile: sepals narrowly ovate, c. 0.5 mm long; styles up to 3 mm long, green. Fruit depressed-globose, c. 2 mm long, 3.5–4 mm diam. Seeds ± globose, c. 2 mm long, 1.9 mm wide.

Grows in the understorey of complex notophyll vineforest on soil derived from metamorphic rocks.