Nettle refers to plants with stinging hairs, particularly those of the genus Urtica. It can also refer to plants which resemble Urtica species in appearance but do not have stinging hairs. Plants called "nettle" include: ball nettle – Solanum carolinense. bull nettle. Cnidoscolus stimulosus, bull nettle, spurge nettle. Cnidoscolus texanus, Texas bull nettle. Cnidoscolus urens, bull nettle. Solanum elaeagnifolium, bull nettle, silver-leaf nettle, white horse-nettle. dead nettle, dumb nettle. Lamium, particularly Lamium album. false nettle – Boehmeria. flame nettle – Coleus.
https://en.wikipedia.org/wiki/List_of_plants_known_as_nettle