About Isotrema tomentosum (Sims) H.Huber
Isotrema tomentosum (Sims) H.Huber, previously known as Aristolochia tomentosa, is a species of flowering plant that belongs to the Aristolochiaceae plant family. It is native to the southeastern and south-central region of the United States. This plant is commonly called woolly Dutchman's-pipe, a name that comes from its flower's superficial resemblance to a Dutch smoking pipe.