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

Bayer Code : coima

Scientific name: Conium maculatum L.


Synonym(s) of Sc. name:

Classification: Umbelliferae, Dicotyledonous

Common name: hemlock

Synonym(s) of Common name:

Name per country: DE : Flecken-Schierling ; ES : cicuta mayor ; FR : grande ciguë ; IT : cicuta maggiore ; PT : ansarina-malhada ; EN : hemlock ; NL : gevlekte scheerling ;

Biological type: Annual, Perennial


Seedling snapshot Seedling:

- Cotyledons ovate -lanceolate and glabrous.

- Leaves alternate, the first palmate, the others with pinnate with ovate or triangular segments.


Adult plant snapshotAdult plant snapshot Adult plant:

- Height : 50-250 cm.

- Stem glabrous, plum blue, with red spots at the base, erect and greatly branched.

- Leaves alternate, glabrous, the lower triangular, divided (2-4 times) with oblong triangular segments, very small towards the top.

- Flowers white in umbel, 10-20 unequal rays. Bracts numerous and lanceolate triangular, whitish, recurved with membranous margin.

- Fruits 2.5-3.5 mm with sides generally undulate-crenate.

- Biological type : annual or perennial.


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

Return INRA  Return INRA-Dijon  Return Weed Science & Agronomy Unit  Return HYPP-A

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