Slender herb to 70 cm high. Leaves 2.5–4(–10) cm long, oblong-ovate in outline, 3–4-pinnate or ternately dissected; segments filiform, 0.5–1 mm wide; lower leaves petiolate, upper leaves sessile. Umbels 1.5–2.5 cm diam., sessile to shortly pedunculate; rays 2–5, 8–24 mm long; umbellules 8–12 mm diam., usually 6–20-flowered; bracts and bracteoles absent; pedicels 3–7 mm long. Petals white, c. 0.3 mm long. Fruit 1–3 mm long. Flowers spring and summer.
GleP, VVP, VRiv, GipP, OtP, CVU, NIS, EGL, EGU, OtR. Also naturalised WA, NT, SA, Qld, NSW, ACT, Tas . A sporadic weed of moist lowland areas, mostly in the east of the State, as well as occasionally a weed in Melbourne (e.g. Royal Botanic Gardens), with isolated western occurrences near Warrnambool.
