This flowering perennial can be found growing wild in the wastelands of the United States, Canada, and Europe. Nettles grow to a height of 30-50cm, and are covered in stinging hairs that cause skin irritation. The leaves are dark green, covered in hairs and sharply toothed. Nettle flowers (which appear in summer) are tiny, green and hang in dense clusters (female) or flower spikes (male).

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