We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleNovel weapons and invasion: biogeographic differences in the competitive effects of Centaurea maculosa and its root exudate (+/-)-catechin.AuthorsHe WM; Feng Y; Ridenour WM; Thelen GC; Pollock JL; Diaconu A; Callaway RMPublicationOecologia, 2009, Vol 159, Issue 4, p803ISSN1432-1939Publication typearticleDOI10.1007/s00442-008-1234-4