Weed Science & Agronomy
INRA-Dijon
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Unité de Malherbologie & Agronomie Weed Science & Agronomy INRA-Dijon |
Bayer Code : gaese
Synonym(s) of Sc. name: Galeopsis dubia Leers.
Classification: Labiatae, Dicotyledonous
Common name: downy hemp-nettle
Synonym(s) of Common name:
Name per country: DE : Gelber Hohlzahn ; FR : galéopsis des moissons ; IT : canapetta campestre ; EN : downy hemp-nettle ; NL : bleekgele hennepnetel ;
Biological type: Annual
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- Cotyledons auriculate.
- Leaves entire, elliptic-ovate, regularly dentate.
- Height: 10-50 cm.
- Stem ascending, 4-angled, branched, not swollen and not rough at nodes. Light-head glandular hairs.
- Leaves opposite, ovate, lanceolate, densely velvety beneath, erect-haired.
- Flowers light-yellow or pink, 25-35 mm long in whorls. Upper lip helmet-shaped, erect. Lower lip 3-lobed, median lobe longer than broad and the largest. 4-8 flowers in pseudo-whorl. Calyx campanulate, narrow, 10-veind and 5 subequal teeth 2-4 mm ending in a bristle spine.
- Fruit : 4-achene, ovoid, 3 mm x 2 mm, dull.
- Rare in crops.
- Biological type: Annual.
Ecological profile (click on flags):
Rare
Rare
Rare
Rare
Rare
