nettle

Definitions

• Any plant whose foliage is covered with stinging, mildly poisonous hairs, causing an instant rash.
• Certain plants that have spines or prickles:
• Certain non-stinging plants, mostly in the family Lamiaceae, that resemble the species of Urtica:
• Loosely, anything which causes a similarly stinging rash, such as a jellyfish or sea nettle.