HYPP-A Unité de Malherbologie & Agronomie
Weed Science & Agronomy

Bayer Code : amivi

Scientific name: Ammi visnaga (L.) Lamarck

Synonym(s) of Sc. name: Daucus visnaga L.

Classification: Umbelliferae, Dicotyledonous

Common name: toothpick-plant

Synonym(s) of Common name:bishop's weed

Name per country: DE : Zahnstocher Ammei ; ES : viznaga ; FR : ammi visnage ; IT : visnaga comune ; PT : paliteira ; EN : toothpick-plant ;

Biological type: Annual, Biennial

Seed snapshot Seed:


Seedling snapshot Seedling:

- Cotyledons very narrow, oblong (15 times longer than wide).

- Leaves divided several times, pinnate.

Adult plant snapshotAdult plant snapshot Adult plant:

- height: up to 100cm.Plant glabrous.

- Stem erect, branched towards the top.

- Leaves: all leaves with numerous finely divided linear segments with capillary vessels.

- Flowers white in umbel with numerous rays (up to 150) and tight with indented petals ; involucre with one, two, or several pinnatisect bracts with filiform strap.

- Fruits ovate -oblong 2-2.5 mm distinguished from A. majus because of slightly protruding sides.

- Risk of confusion with : Ammi majus (leaves resemble).

- Biological type : annual or biennial

Mistake with: Ammi majus

Ecological profile (click on flags): Spain   Present     France  Rare     Portugal  Present    

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