Urtica dioica subsp. dioica
Vascular – Exotic
Herbs - Dicotyledons other than Composites
Generally in damp rich soil. Farmland, fence rows, thickets, stockyards, waste places and roadsides.
Stems 0.6 to 2 m tall, slightly branched at the top, slender, rigid, square, and covered with numerous stinging hairs. Leaves dark green, coarse, opposite (7.5 to 15 cm long) pointed with saw tooth margins, sometimes rounded at the base, covered with stinging hairs. Male and female flowers borne separately but on the same plant, in axillary clusters.
N. temperate regions
urtica: From the Latin verb urere which means “to burn”
dioica: Two plants
Life Cycle Comments
Seeds and underground rootstocks.
Seed pod 1-seeded. Seeds small, egg-shaped, slightly rough, yellow to greyish-tan.