Weed Science & Agronomy
INRA-Dijon
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Unité de Malherbologie & Agronomie Weed Science & Agronomy INRA-Dijon |
Bayer Code : lamam
Synonym(s) of Sc. name:
Classification: Labiatae, Dicotyledonous
Common name: henbit dead-nettle
Synonym(s) of Common name:
Name per country: DE : Stengelumfassende Taubnessel ; ES : conejitos ; FR : lamier amplexicaule ; IT : erba ruota ; PT : chuchapitos ; EN : henbit dead-nettle ; NL : hoenderbeet ; DK :
Biological type: Annual
.
- Cotyledons auriculate.
- Leaves entire, rounded, with distal teeth.
- Height: 5-30 cm.
- Stem spreading then erect, tuft-like branched, glabrous below and downy above, leafless below the flowers.
- Leaves lower opposite, stalked; the upper orbicular, sessile reniform, deeply lobed and amplexicaule. Leaves ovate, rounded. Few veins not very interconnected.
- Flowers crimson, relatively small, in distal terminal whorls. Flowers helmet-shaped, with a upper lip entire-margined and with dense purplish hairs, a lower lip with 2 acute lateral lobes and a median larger and notched lobe.
- Fruit : achene, 3 mm, ovate-elongate, with small white warts.
- Plant melliferous at the end of the winter and during the spring.
- Risk of confusion with Lamium purpureum L., Lamium hybridum Vill. (which are different by their not having amplexicaul bracts ).
- Biological type: Annual.
Mistake with: Lamium purpureum , Lamium hybridum
Ecological profile (click on flags):
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