Metabolic Derangement

Inspired by Arah Sneed, I looked up bitterweed in my reference book WEEDS OF THE SOUTH, and yes, that is a book I thought I needed to purchase at the time. So, common ragweed is sometimes called by the name "bitterweed," but I don't think that's what Arah Sneed has in mind, because she mentions "small yellow daisy shaped blossoms and fragile fern-looking leaves." That fits the description of something more properly (?) known as bitter sneezeweed, also called bitterweed, which causes "metabolic derangement" (!) and "tainted milk."