Ammi majus L.

Bishop's Weed

Sp. Pl. 243 (1753) APNI

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Naturalised

Erect to spreading herb, c. 60–120 cm high. Lamina of basal leaves 3–15 cm long; ultimate segments elliptic to obovate, 1–6 cm long, 2–20 mm wide, obtuse; upper stem leaves with linear to linear-lanceolate segments, margins toothed except for uppermost leaves; petioles shorter than lamina. Umbels 4–7 cm diam.; common peduncle to 20 cm long; rays 20–40, 2–7 cm long, arching; bracts to 5 cm long, usually 3-fid or pinnatisect or entire; umbellules mostly c. 10 mm diam., c. 20–many-flowered; pedicels to 10 mm long; bracteoles 1–8 mm long; broad and scarious at base, becoming narrow and acuminate. Petals white, c. 1.5 mm long. Fruit 1.5–2 mm long. Flowers mostly Nov.–Mar.

*Brid, *GipP, *Glep, *HSF, *MuF, *OtP, *VRiv, *VVP, *WaP. Also WA, SA, Qld, NSW, Tas. Native to Eurasia and northern Africa. A weed of cultivation and other disturbed sites, usually on fertile ground (e.g. Cohuna, Hamilton, Queenscliff areas).

Source: Duretto, M.F. (1999). Apiaceae. In: Walsh, N.G.; Entwisle, T.J. (eds), Flora of Victoria Vol. 4, Cornaceae to Asteraceae. Inkata Press, Melbourne.
Updated by: Val Stajsic, 2018-11-26
Hero image
Distribution map
life Life
kingdom Plantae
phylum Tracheophyta
superorder Asteranae
order Apiales
family Apiaceae
genus Ammi
Higher taxa
species Ammi majus L.


Source: AVH (2014). Australia's Virtual Herbarium, Council of Heads of Australasian Herbaria, <>. Find Ammi majus in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Ammi majus in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Glenelg Plain present naturalised
Bridgewater present naturalised
Victorian Volcanic Plain present naturalised
Victorian Riverina present naturalised
Murray Fans present introduced
Gippsland Plain present naturalised
Otway Plain present naturalised
Warrnambool Plain present naturalised
Highlands-Southern Fall present naturalised

State distribution

Distribution map
Western Australia
South Australia
New South Wales