Stinging Nettles; easy, tasty, and healthy

leaves alternate, ridged. most notably, they sting you. although all species of nettle are edible, and/or medicinal.
WHERE? they grow throughout North America, in wet and shaded soil.
USE: they are a yummy spinnich green and make a tasty tea too. this is convienient because you just boil them and you get both a spinnich and a tea out of it. diaretic, astringent. good for lung congestion apparently, my book tells me at least. its iron rich! and it is also calming. but that it relly tastes pleasing is all it took for me to highly reccomend this plant.