The seed leaves can be round to oval, and have minimal to no hairs. Stinging Nettle Scouting and Prevention: Stinging Nettle is an erect broadleaf weed that typically grows in colonies. Stinging nettle is a tall perennial broadleaf weed that often grows in colonies. Stinging nettle rash occurs when the skin comes into contact with stinging nettles. Stinging nettle should not be confused with "white dead nettle" (Lamium album). Stinging nettle is an herbaceous plant and often grows to about 2 metres (6.5 feet) in height. Overview Information Stinging nettle is a plant. Stinging nettle has a range of uses, and many people find it to be an effective remedy. The cotyledons (seed leaves) are round to oval, and hairless except for a few stinging hairs and sparse, short, nonstinging hairs. Stinging nettle root is a common treatment in Europe for symptoms of BPH. The herb is generally safe to use, but it can cause side effects in some people.
Stinging nettles are plants that are commonly found in many areas of the world.

The first true leaves have margins that … Stinging Nettle. The toothed leaves are borne oppositely along the stem, and both the stems and leaves are covered with numerous stinging and non-stinging trichomes (plant hairs). People use the root and above ground parts as medicine.

The leaves of a mature plant have margins that are coarsely toothed, that sit on the ends of short stalks with the surface of the leaves covered in stinging hairs. The stinging nettle is a familiar and common plant, often firmly rooted in our memories after our first, hands-on experience - a prickling irritation that's not forgotten easily! Nettle has been used in alternative medicine to treat hay fever, asthma, diarrhea, osteoarthritis, circulation problems, diabetes, fluid retention, symptoms of enlarged prostate, and other conditions. The plant can spread vegetatively with its yellow creeping rhizomes and often forms dense colonies. This is a noncancerous condition that causes the prostate gland to enlarge, making urination difficult.