Noxious Weed Identification (ID) Links:

Plants Database:

category 1: Category 1 noxious weeds are weeds that are currently established and generally widespread in many counties of the state.  Management criteria includes awareness and education, containment and suppression of existing infestations and prevention of new infestations.  These weeds are capable of rapid spread and render land unfit or greatly limit beneficial uses.

(a) Canada thistle (Cirsium arvense) Univ. of CA, State Wide Integrated Pest Mgmt. Proj.  Native Plant Conservation Alliance  Rickert's Garden Page  USDA  University of California  Wikipedia  GISI  Holoweb  PCA  Missouri Plants  Kurt Stuber’s online library  ITIS  Wild flowers and weeds  Invasive  USDA  GISI  Diagnose Me  Dave’s Garden  CDFA  The Nature Conservancy  Virginia Tech  Wikibooks  Pest tracker -   plants for a future  photopage hortiplex missouri plants   wikipedia    wikipedia   USDA  GISSD  USDA  FNWD of the U.S.  USDA  USDA  wikipedia  wildflowers & weeds  USDA  Element Stewardship   colostate   USGS   conNe  missouri plants  USDA  NC state university  USDA  USDA  GISD  ITIS  NWCB  USDA  wikipedia  USDA  IT IS  USDA  GISI  bio control  USDA  Garden web  hypericum  USDA  herb med's_wort  wikipedia  homecare group missouri plants  NWCB   wildflowers  MIT  Kemper  Wikipedia  plants for a future  USDA  look smart  plants for a future   woad indigo project   USDA  alien plant working group  GISI  non-native fresh water plants  USGS  ConNe   Flora  Judy Woods  PUBMED  PUBMED  Equine Natural Health  GardenWeb  USDA  MSU TURF  species description   Connecticut botanical society  idaho’s noxious weeds  Suite 101   NC State university  USDA  state noxious weed control board   alaska committee for noxious invasive weeds  conneticut botanical society  CalPhotos   IT IS  BURKE  USDA  USDA  my garden  Morton  Den virtuella floran  forestry images  Herbarium  wikipedia  invasive species in the southwest  USDA USDA  USDA  answers  ITIS  FEIS  wikipedia  USDA  ITIS  USDA FEIS  UCCE  wikipedia  USDA  idaho’s noxious weeds  CDFA  USDA   Federal Noxious Weeds  state noxious weed control board  U& ICWMA  USDA  hortiplex  CAL PHOTOS  plant viruses online  CDFA  NWCB