Species factsheet for Galeopsis pyrenaica - Biological Diversity, Biodiversity, Clearing-House Mechanism, CHM Galeopsis speciosa - Description of Large-flowered Hemp-nettle and two photographs. Galeopsis tetrahit - Several photographs of Common Hemp-nettle and some identifying features. Galeopsis bifida - Description of Small Hemp-nettle and a photograph. Galeopsis ladanum - Photograph and information on red hemp nettle, its morphology, biology, distribution, ecology and economic significance as a weed species. Red Hemp-Nettle - Photos and description of Galeopsis angustifolia, commonly known as red hemp-nettle Galeopsis segetum - photos Galeopsis ladanum - photo