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

Bayer Code : gnaul

Scientific name: Gnaphalium uliginosum L.

Synonym(s) of Sc. name:

Classification: Compositae, Dicotyledonous

Common name: marsh cudweed

Synonym(s) of Common name:

Name per country: DE : Sumpf-Ruhrkraut ; ES : ; FR : gnaphale des marais ; IT : canapicchia palustre ; PT : gnafa-cinzenta ; EN : marsh cudweed ; NL : morasdroogbloem ; DK : sump-evighedsblomst

Biological type: Annual

Seed snapshot Seed:

.

Seedling snapshot Seedling snapshot Seedling:

- Cotyledons very narrow and short (few mm long).

- Leaves entire, linear, acuminate.

Adult plant snapshotAdult plant snapshot Adult plant:

- Height: 5-30 cm.

- Stem erect, ascending, mostly branched near the base, tomentose (grey or white wooly hairs).

- Leaves lower in rosette. Leaves alternate, lanate on both sides, lanceolate -linear, narrowed below.

- Disk-florets and ray -florets yellowish, tubular, few; heads 2-3 mm broad, in terminal clusters of 3-10, overtopped by the leaves. Involucral bracts in numerous rows, membranous, brown, nearly glabrous, recurved at fruiting.

- Fruit : achene with pappus of deciduous white hairs.

- Plant growing in damp places of fields. Used during the sixteen and the seventeen centuries against dysentery.

- Biological type: Annual.

Ecological profile (click on flags): BeneLux   Present     Germany  Present     Denmark  Present     Spain  Rare     France  Present     Great Britain  Rare    

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/gnaul_ah.htm ,