Weed Science & Agronomy
INRA-Dijon
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Unité de Malherbologie & Agronomie Weed Science & Agronomy INRA-Dijon |
Bayer Code : gaean
Synonym(s) of Sc. name: Galeopsis ladanum subsp. angustifolia Gaudin Galeopsis ladanum sensu Coste non L.
Classification: Labiatae, Dicotyledonous
Common name: red hemp-nettle
Synonym(s) of Common name:
Name per country: DE : Schmalblättriger Hohlzahn ; FR : galéopsis à feuilles étroites ; IT : canapetta a foglie strette ; EN : red hemp-nettle ; NL : smalbladige raai ;
Biological type: Annual
.
- Cotyledons auriculate.
- Leaves entire, elliptic-ovate, regularly dentate.
- Height: 10-40 cm. Plant light-green-dark-green.
- Stem branched, usually pubescent, 4-angled, not swollen and not waxed at nodes.
- Leaves opposite, stalked, lanceolate, very narrow, toothed or crenate, hairy-downy to slightly glandular, weakly veined.
- Flowers in axillary pseudo-whorls. Calyx campanulate hairy, whitish-green unequally-toothed, densely appressed -hairy. Corolla purple, scarcely white, upper lip helmet-shaped, erect. Lower lip 3-lobed, median lobe longer than broad and the largest.
- Fruit : 4-achene ovoid, 3 mm x 2 mm.
- Biological type: Annual.
Mistake with: Galeopsis ladanum
Ecological profile (click on flags):
Present
Rare
Rare
Present
Present
