Keywords: JoePye-5fold.jpg Eutrochium fistulosum with 5-fold rotational symmetry in its leaf and flower Whorl botany whorls 2014-07-14 17 58 23 own Douglas W Jones 41 669993 -91 550965 heading SE cc-zero Uploaded with UploadWizard Eutrochium fistulosum Symmetry in biology |