''Galeopsis ladanum'' var. ''angustifolia'', the red hemp-nettle, is a European annual plant growing to 30 cm tall. It flowers between June and October on waste ground, railway tracks, and other stony places. It is classified as critically endangered, having declined dramatically in the last 60 years due to increased fertiliser and

herbicide Herbicides (, ), also commonly known as weedkillers, are substances used to control undesired plants, also known as weeds.EPA. February 201Pesticides Industry. Sales and Usage 2006 and 2007: Market Estimates. Summary in press releasMain page fo ...

. Modern farming techniques such as autumn cultivation have also affected the plant because they are killed before they have set seed.

References

ladanum var. angustifolia Flora of the United Kingdom {{Lamiaceae-stub