Plants in the Urtica genus
U
- U. angustifolia
- U. breweri
- U. californica (Stinging Nettle)
- U. cannabina
- U. dioica (Stinging Nettle Common Nettle)
- U. gracilis (Stinging Nettle)
U cont.
- U. holosericea (Stinging Nettle)
- U. hyperborea
- U. incisa (Scrub Nettle)
- U. laetivirens
- U. lyallii (Stinging Nettle)
- U. parviflora
U cont.
- U. pilulifera (Roman Nettle)
- U. platyphylla
- U. procera (Stinging Nettle)
- U. serra
- U. thunbergiana
- U. urens (Annual Nettle)