Parsnip Laceflower

Erect robust annual or biennial herb, to 250 cm high, with stout taproot; stems villous with glandular hairs to almost glabrous. Leaves mostly towards the base of the plant, lamina broad ovate, 3–8 cm long, 4–10 cm wide, sparsely hairy to pilose, paler on the undersurface, deeply 3–5 lobed; segments obovate to cuneate, 4–32 mm wide; margins toothed; petiole to 20 cm long with broadly sheathing ciliate base.