01578oam 2200481I 450 991070820980332120170920115437.0(CKB)4100000008392679(OCoLC)1002856582(EXLCZ)99410000000839267920170905d2005 ua 0engurcn|||||||||txtrdacontentcrirdacontentcrdamediacrrdacarrierCanada thistle /Gwendolyn Thunhorst, Jil M. Swearingen[Washington, D.C.] :Plant Conservation Alliance, Alien Plant Working Group,2005.1 online resource (3 pages) color illustrations, mapsFact sheet / Plant Conservation Alliance"20 May 2005."Includes bibliographical references (pages 2-3).Canada thistleUnited StatesInvasive plantsUnited StatesNoxious weedsUnited StatesPlant conservationUnited StatesNative plants for cultivationUnited StatesCanada thistleInvasive plantsNoxious weedsPlant conservationNative plants for cultivationThunhorst Gwendolynl1407250Swearingen Jil M.Plant Conservation Alliance.Alien Plant Working Group,GPOGPOGPOBOOK9910708209803321Canada thistle3488248UNINA