Species guide
Stinging nettle
Skin irritantUrtica dioica
What does Stinging nettle look like?
Heart- to lance-shaped toothed leaves in opposite pairs on a square stem, all covered in fine stinging hairs. Spreads in dense patches.
Is Stinging nettle dangerous?
The hairs inject a cocktail that causes a stinging, itchy rash on contact — irritating but not dangerous, and it usually settles within hours.
What should I do about Stinging nettle?
Rinse the area, avoid scratching, and don't rub the hairs in further; the rash typically fades within a day.