When I was a kid, I used to get severe headaches from what we thought was goldenrod. The only reason I tried it was because I read in a book (fictional) of how this old woman drank a cup of goldenrod tea every morning and outlived most of her doctors who told her to take all this medicine, and she didn't. So one day I passed a patch of goldenrod, hmm...picked some leaves, took em into the house put a pot of water on, threw the leaves in, boiled it and drank the contents (minus the leaves). Not bad, with sugar. Next time I'll try some lemon and honey, just to see wut it tastes like.