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

Bayer Code : lamam

Scientific name: Lamium amplexicaule L.


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


Seed snapshot Seed:

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Seedling snapshotSeedling snapshot Seedling:

- Cotyledons auriculate.

- Leaves entire, rounded, with distal teeth.


Adult plant snapshotAdult plant snapshot Adult plant:

- 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


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