Roodie's Garden
Stinging Nettle
Genus: Urtica.
Species: Urtica dioica.
These were the enemy of my garden, after up rooting these year after year the numbers of these Nettles have finally decreased.
I won't speak so soon though, you never know they could always comeback.
If you ever got stung by one, best thing to do is grap a green leaf from a tree nearby and rub over stung area.. I always found this soothed the burn and stopped the area from going red and coming up with blisters.