Urticaceae (Nettle Family)
Urtica dioicaL. ssp. gracilis(Ait.) Seland var. holosericea(Nutt.) C.L. Hitchcock. Stinging Nettle.(Urtica holosericea Nutt.) A perennial from spreading rootstocks, the stout stems 3–6 ft (1–2 m) tall. Leaves are opposite, lanceolate to ovate, coarsely toothed, 2–5 in (5–12 cm) long. The herbage has scattered bristles as well as fine hairs. Any contact with the skin causes painful stinging, which may persist for some time. The plants are monoecious. Flower clusters are located at the nodes on the upper part of the stems. The male clusters are almost as long as the leaves, the female clusters short and dense. Flower: Inconspicuous.
Distribution. Common to abundant in riparian areas; Desert Scrub and Pinyon-juniper Woodland, up to 9,000 ft (2,744 m).