Any of various plants with inconspicuous green flowers and (usually) stinging hairs that constitute the genus Urtica (family Urticaceae); esp. the…

the lesser stinging nettle (Urtica urens).

In special collocations: Greekish fire n. Obsolete = Greek fire n. at Greek, adj. compounds. Greekish hay n. Obsolete a leguminous plant, fenugreek…

a Mediterranean stinging nettle, Urtica pilulifera, (formerly also found in Britain) in which the female flowers form distinctive globular heads.

A form of common nettle, Urtica dioica, or Roman nettle, U. pilulifera, with reddish parts. Also: the red dead-nettle, Lamium purpureum. Now chiefly…

English regional (midlands and southern). = nettle, n. 1a. Now rare.

(With capital initial.) A genus of apetalous plants, typical of the Nat. Order Urticaceæ, including the true nettles; also, a plant of this, a…

perhaps Urtica pilulifera.

the Roman nettle, Urtica pilulifera.

Clearweed, Pilea pumila.

A North American plant (Pilea pumila) of the nettle family; rich-weed.

Urtica dioica and other species.

The New Zealand tree nettle, Urtica ferox, which has virulent stinging hairs and grows into a shrub of up to 10 feet (3 metres) in height.

†(a) a kind of fern; = maidenhair, n. 1 (obsolete); (b) any of various nettle-like plants constituting the genus Acalypha (family Euphorbiaceae)…

An exogenous plant belonging to the genus Urtica.

More fully jinny nettle. A stinging nettle, Urtica dioica.