nettle

Most, but not all, subspecies of Urtica dioica (common nettle),

Urtica incisa (Australian nettle);

Wood nettle (Laportea canadensis);

bull nettle, spurge nettle (Cnidoscolus stimulosus)

Texas bull nettle (Cnidoscolus texanus),

bull nettle (Cnidoscolus urens),

Various species of the genus Dendrocnide

small-leaved nettle (Dendrocnide photinophylla).

scratchbush (Urera baccifera)

tree nettle (Urtica ferox);