Photographs: Ballingeary, Co. Cork

Common Hemp-nettle Galeopsis tetrahit Gá búi Family: Lamiaceae Flowering time: July-October. Annual. Native. Flowers can be pink or white and have purple markings on the un-notched lower lip. The calyx is very bristly. Leaves are oval, toothed and hairy on branched, erect and bristly-hairy stems. Height: 10-80cm. Found on arable land, waste ground, hedge banks and disturbed road verges. Widespread but most frequent in the north and south-east of Ireland Similar: Bifid Hemp-nettle, Galeopsis bifida has a notched lower lip

Common Hemp-nettle, Galeopsis tetrahit, Gá búi