Day-nettle/Hemp-nettle

Galeopsis tetrahit



Glidewort, Holy rope

Importance

Prefers cool damp climates - common in spring cereals and vegetables. A problem especially in Scotland.

Day-nettle/Hemp-nettle - young1. Large oval to round cotyledons with backward directed lobes at the base of the leaf blade.
Day-nettle/Hemp-nettle 22. The true leaves are markedly toothed, veined, hairy and pointed, arising in pairs up the stem on fairly long stalks.

 

Day-nettle/Hemp-nettle - mature3. An upright annual with square hairy stems and rings of purple flowers at the top.