Conium fontanum Hilliard & B.L.Burtt

Biennial herb, up to 0.5(1.0) m high. Leaflets lobed at least halfway to midrib, lobes oblong to broadly elliptic or narrowly elliptic to linear, 1.5-3.0 mm wide, often overlapping, apex obtuse or sharply acute, margins toothed or sparsely sharply serrate. Inflorescences: umbels obconic when dry, 20-50 mm in diam. at anthesis. Bracteoles linear or narrowly linear-lanceolate (up to 1 mm wide), free at base. Flowers white. Flowering time Nov.-Jan.