sooby said:Swayback, could you be thinking of Laportea, which is in the same family, also stings, but has some alternate leaves?
See:
http://www.illinoiswildflowers...
I can assure you that my pic is of stinging nettle (Urtica dioica) and it sure does sting.
I should add that I'm also thinking the original plant in question is likely neither stinging nettle nor catnip.
That does in fact look pretty close to the plant that I've always called creek nettle, really close actually but a few minor differences but that could just be genetic variation.
If you notice I start my original response by saying there are many types of "stinging nettle", as far as I know, that's just a generic name that we use to group plants that sting with fine hairs, as opposed to thorns or spines...
I have no doubt the plant you showed is a stinging nettle of some sort, just not one that I've ever spotted around here is all.
I also tend to agree that the plant in question is likely to be neither a nettle or catnip.
