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Hemp-nettle Galeopsis tetrahit L.
Summer Annual
Reproducing by seed

Cotyledons
Round to oval with distinct
notched tip

Roots
Fibrous taproot

Stem
Square and hairy
Simple or branched
Erect, downward pointing bristly hairs

True Leaves
Opposite, oval with large
rounded teeth on both sides
Stalked, hairy, prominently veined

Flowers
Short, dense
White, pink and purple
Clustered at stem joint
Petals joined and two-lipped

Habitat
Grain fields, gardens, pastures, waste areas

Note
Resistant to 2,4-D

Click on image to enlarge

Hemp-nettle 1

Hemp-nettle 2

Hemp-nettle 3

  Last Update: May 1, 2007