I have a very serious ragweed allergy and I am living in Hungary which is pretty much super infested. I started wondering which countries are affected by this lovely plant, because I don't want to have vacation in the season in these places.

So the question is: is there a map that shows its affected areas? If not, is there a publicly available international database of affected areas?

1 Answer 1



According to the little number on the lower left, this is from 2012. The situation is worse than I expected in Europe. Also, there is a map from the states:


It will be so cool to find a map from the whole globe though.

  • A great answer to a great question (+1 each) :-). The second link seems to be broken it doesn't work. Can you fix it? I think many users will find this answer very useful, thanks!
    – Lucky
    Sep 30, 2016 at 5:18

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