Stinging Nettle
Urtica dioica

This shot was taken at Warblington Cemetery in Hampshire. Stinging nettles flower throughout the summer on the edges of woodland, roadsides and some river banks.The male and female flowers occur on separate plants. Nettle leaves and
stems are covered with sharp spines that sting, this is caused by histamine, small amounts of formic acid and other compounds. The sting is deactivated when the plant is dried or cooked.