Tiny hairs on the stems and leaves of stinging nettle, when touched, cause welts or inflammations on the skin. The stems reach 3 to 8 feet tall, and the leaves are 5 inches long and 3 inches wide. Small greenish flowers bloom on clusters of spikes from June to September. Stinging nettle grows in damp, rich soil. It is found along creeks, on the edges of wooded lots, and occasionally in lawns, unplanted areas, and landscaped beds. It reproduces by seeds and underground creeping rhizomes.
Stinging nettle can be hoed or hand-pulled, but be sure to wear gloves and a long-sleeved shirt.