Weed Science & Agronomy
INRA-Dijon
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Unité de Malherbologie & Agronomie Weed Science & Agronomy INRA-Dijon |
Bayer Code : gaebi
Synonym(s) of Sc. name: Galeopsis tetrahit subsp. bifida
Classification: Labiatae, Dicotyledonous
Common name: bifid hemp-nettle
Synonym(s) of Common name:
Name per country: DE : Zweispaltiger Hohlzahn ; FR : galéopsis bifide ; IT : canapetta bifida ; PT : ; EN : bifid hemp-nettle ; NL : ; DK :
Biological type: Annual
- Cotyledons round-oval, auriculate, emarginate at petiole ; end rounded; petiole with 2 lines of hairs.
- Foliage leaves ovate, with 5-10 large, usually rounded teeth on both sides, softly hairy on both sides, rounded at the base.
- Height 10-50 cm.
- Stem simple or branched, heavily thickened on the nodes, bristly.
- Foliage leaves oblong -ovate, softly hairy on both sides, regularly coarsely dentate.
- Flowers lilac-red, somewhat pale, usually with white or yellow marking, smaller than G. tetrahit (crown 10-15 mm long); middle lobes of the lower lip oblong, at the front distinctly emarginate (bifid ).
- Not to be confused with Galeopsis tetrahit
- Biological type: annual
- Spread: especially in North- and East-Europe
Mistake with: Galeopsis tetrahit
Ecological profile (click on flags):
Rare
