Unité de Malherbologie & Agronomie Weed Science & Agronomy INRA-Dijon

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:

.

Seedling:

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

- Leaves divided several times, pinnate.

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):   Present       Rare       Present    

Copyright © 2000-2001 INRA, all rights reserved ; J.-P. Lonchamp, Nov. 2000
http://www.dijon.inra.fr/bga/hyppa/hyppa-a/amivi_ah.htm ,