Follow up…The book”Common Weeds of the United States”-USDA-did not mention the previously listed cosmopolitan weeds that Richard Mabey had discussed.From a list of about 240 weeds in the book,the following are described as cosmopolitan:sheppards spurse,mayweed,and smallflower galinsoga.I am sure the scientists constantly discuss the definition!Now the real kicker…semi-cosmopolitan weeds-argh!Listed were spanish needles and horseweeds.You might have to connect the dots on that definition.The pics of the flowers are the cosmo weeds-wikipedia-sheppards purse:mayflower-gardenaction.co.uk;forestimages.org-smallflower galinsoya.

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One thought on “Follow up…The book”Common Weeds of the United States”-USDA-did not mention the previously listed cosmopolitan weeds that Richard Mabey had discussed.From a list of about 240 weeds in the book,the following are described as cosmopolitan:sheppards spurse,mayweed,and smallflower galinsoga.I am sure the scientists constantly discuss the definition!Now the real kicker…semi-cosmopolitan weeds-argh!Listed were spanish needles and horseweeds.You might have to connect the dots on that definition.The pics of the flowers are the cosmo weeds-wikipedia-sheppards purse:mayflower-gardenaction.co.uk;forestimages.org-smallflower galinsoya.

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