Photo from Western Weeds CD-ROM, A guide to the weeds of Western Australia by B.M.J. Hussey, G.J. Keighery, R.D. Cousens, J. Dodd and S.G. Lloyd. Web version by R. Randall. Courtesy Ecoport.
(source URL: http://ecoport.org/ep?SearchType=pdb&PdbID=3861&pictureType=PH&subjectType=E&subjectId=7099)