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The Global Compendium of Weeds is a list of plant species (over 28,000 names) that have been cited in specific references (approximately 1,000) as weeds. An expert has assessed the status of the weed based on its context in each document. Sometimes, additional information--such as native range, whether the plant has reported medical/herbal uses, etc.--is included when available.
The inclusion of a species in the Global Compendium of Weeds [GCW] does not necessarily indicate that the GCW author or sponsors (or the sponsors of the hosting website) consider the species a weed, nor do those entities vouch for the veracity of any particular source; the GCW is simply an attempt to provide summary information from a wide range of documented sources.
Although the data on this website are more current* than the 2002 book (printed), as of this writing, the most current online version is available as a free PDF download of the 2017 version of the book.
*A small number [perhaps several hundred] species/reference combinations are missing from this online version due to data conversion issues.
If you have corrections, can recommend additional source documents, or require further information about the GCW, please contact firstname.lastname@example.org.
|This page was created on 26 September 2007 by PT, and was last updated on 23 November 2018 by PT based on data from Rod Randall's Global Compendium of Weeds database dated 24 January 2007.|