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Weeds ID Lists by Region in North America
... the Ergonica Weed Identification Reference Matrix - EWIRM
... see Mobile Friendly view of this page ...

 

Rubus occidentalis L. - black raspberry  escobaria vivipara quercus alba oenothera speciosa quercus marilandica opuntia humifusa sicyos angulatus

Identify and Defy invasive weeds!  More than 200 Free and Value Priced Weed Identification Links, PDF Downloads (many free from Ergonica), DVDs, Databases and Weed ID Keys and Guides including thousands of Images, Drawings, Illustrations and Photo Picture Files... 

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Looking for lists and images to identify weeds in your state or province?  Every state and province in North America has a unique assortment of weeds that are either noxious or a nuisance depending on how certain weeds affect the indigenous flora and agriculture.  A given weed identified as noxious in one state may not pose a threat in another state, even if it may be established in both areas.  In the last few years, to the convenience of home gardeners and professionals alike, many weed ID lists have found a new home on the Web!  Ergonica has also collected numerous Free Weed Identification and Control-Management Guides as documents (mostly PDF) that you can download from the Ergonica Shopping Catalog.    

Over 200 weed ID lists and databases are listed and described on these linked pages and files, including information about images, costs (if any), list criteria, number of species, and authors.  They are sorted by multi-state regions followed by individual states or provinces in alphabetical order.  Most states have passed legislation to identify noxious weeds and other types of weeds that should be managed carefully.  Legislation often forbids the movement of noxious weed seed into the state.  Some weeds are classified with restricted movement in counties where the county has administrative authority.  See list of photos by weed species.

North American Weed ID Picture Lists by Region, State or Province Matrix

Multi-State Regions Alabama AL Alaska AK Alberta, Canada
Arizona AZ Arkansas AR British Columbia, Canada BC California CA
Colorado CO Connecticut CT Delaware DE Florida FL
Georgia GA Hawaii HI Idaho ID Illinois IL
Indiana IN Iowa IA Kansas KS Kentucky KY
Louisiana LA Maine ME Manitoba, Canada Maryland MD
Massachusetts MA Michigan MI Minnesota MN Mississippi MS
Missouri MO Montana MT Nebraska NE Nevada NV
New Brunswick, Canada New Hampshire NH New Jersey NJ New Mexico NM
New York NY Newfoundland, Canada North Carolina NC North Dakota ND
Nova Scotia, Canada NS Ohio OH Oklahoma OK Ontario, Canada ON
Oregon OR Pennsylvania PA Quebec, Canada PQ Rhode Island RI
Saskatchewan, Canada SK South Carolina SC South Dakota SD Tennessee TN
Texas TX Utah UT Vermont VT Virginia VA
Washington WA West Virginia WV Wisconsin WI Wyoming WY

bulletClick on a state or region link above or select a larger Region to the right to Search the Ergonica Catalog for Free Weed Identification PDF Downloads in North America, USA, Canada, South America, Central America, Africa, Australia, Europe

bulletSelect from the drop-down list to the right to learn about weed types i.e. annual, biennial, invasive, noxious, toxic, grass, herb, woody, tree, vine, aquatic, lawn weeds, etc.  --- free Weed Identification PDF downloads from Ergonica

bulletKey in and Search Ergonica catalog for free weed identification PDF documents or products by keywords such as type, location, author, manufacturer

Search Tool Tips:  After pressing the Submit or Submit Text button, a list of products, mostly free downloads, will be displayed and the Back button on the bottom of each page will allow you to refine your search to specific categories, manufacturers, price range, and more.  Adding more search keys will reduce the resulting selections.  Placing the OR argument between terms will increase the selection.  A blank space between keys is treated as an AND.  For example dandelion management OR dandelion control will give you documents and products related to dandelion management or control.  Enter dandelion tool for tools that remove dandelions.  The Ergonica Catalog Search Tool scans the entire description for keywords by default.  It will also include extensions to keywords such as longer words with the same root.  To jump start your refined search, go directly to the Ergonica Catalog Advanced Search Tool.  
NOTE:  These PDF documents may be conveniently  ported and viewed by popular solutions such as the  iPad Kindle or other similar document reading tablets.  Simply download the document to your computer and copy to your digital reader. Great for managing weeds in the fields or scoping out your own garden!

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Musings of Dr. Yucca: Some weeds may deserve an appeal to your forgiveness…

 

Direct link to this page: http://www.weedtwister.com/weed_identification.htm

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Revised: May 22, 2014 .