Paul Harcourt Davies / Red Hemp Nettle (Galeopsis angustifolia) on the moraine of Mount Terminillo near Terni, Italy, September.

Paul Harcourt Davies / Narrow-leaved red hempnettle (Galeopsis ladanum var. angustifolia) in flower, Italy. September.

Linda Pitkin / Red hemp-nettle (Galeopsis angustifolia) in flower,, an arable plant in a field. Locally rare plant, Langley Vale Wood, Surrey, England, August. Critically endangered in England.

Linda Pitkin / Red hemp-nettle (Galeopsis angustifolia) in flower, an arable plant in a field. Locally rare plant. Langley Vale Wood, Surrey, England, August. Critically endangered in England

Linda Pitkin / Red hemp-nettle (Galeopsis angustifolia), in flower, an arable plant in a field. Locally rare plant, and Critically endangered on the Vascular Plant Red Data List for England. Langley Vale Wood, Surre...

Philippe Clement / Red hemp-nettle (Galeopsis angustifolia / Galeopsis ladanum / Galeopsis ladanum var. angustifolia) in flower, Provence, France, September