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Notes -
Why are dandelions so prevalent in cities, in absolute terms as well as in comparison to other weeds?
Dandelions are a pioneer species, meaning they’re prolific breeders with high pollution resistance which spread easily and do best in disturbed environments.
Mowed lawns, roadsides, parks- these are disturbed environments exposed to the elements and with some level of pollution. That tends to suppress non-dandelion species more than dandelions, as well as make an inviting environment for dandelions. Where I live it’s common to have unmowed areas where bluebonnets are known to grow; the relative lack of disturbance for part of the year actually results in fewer dandelions.
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