Ontario
Weeds: Henbit
Table of Contents
- Name
- Other Names
- Family
- General Description
- Stems and Roots
- Flowers and Fruit
- Habitat
- Similar Species
- Related Links
Name: Henbit, Lamium amplexicaule
L.,
Other Names: lamier amplexicaule, pain
de poule
Family: Mint Family (Labiatae)
General Description: Annual or winter
annual, reproducing only by seed.
Photos and Pictures
Stems & Roots: Stems erect, 10-40cm
(4-16in.) high, much-branched near the base, the branches spreading
and becoming erect, square, finely hairy; leaves opposite (2 per node),
lower ones long-stalked, broad, rounded to somewhat heart-shaped with
coarsely lobed or irregularly toothed margins; upper leaves stalkless,
broad-based, more or less clasping the stem.
Flowers & Fruit: Flowers in clusters
in axils of these broad, stalkless, upper leaves; calyx small, tubular,
5-ribbed, with 5 small, sharp but soft teeth; corolla pinkish or purplish,
12-18mm (½-¾in.) long, of 5 united petals, irregular,
tubular, 2-lipped at the end, the upper lip arched and with a tuft
of hair on the top but not lobed, lower lip 2-lobed. Flowers in spring
and early summer and occasionally again in late summer and autumn.
Habitat: Henbit occurs throughout southern
Ontario in gardens, waste places and roadsides.
Similar Species: It is distinguished by
its annual. erect branching habit, its square stems, its opposite
leaves, the lower ones long-stalked, the upper ones stalkless, broad,
and clasping the stem, and its clusters of pinkish to purplish flowers
in the axils of the broad upper leaves.
Related Links
... on general Weed
topics
... on weed identification, order OMAFRA Publication 505: Ontario Weeds
... on weed control, order OMAFRA Publication 75: Guide To Weed Control
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