Massachusetts Proposes Ban/Phase-Out of 140+ Plants

Diane Whitehead
Wed, 07 Sep 2005 09:48:03 PDT
It is interesting to do a Google search on "plant migration".  I did 
it to find the title of a book I read in the 1950s about scientists 
tracking weeds to map prehistoric migrations of people.  One chapter 
was on sunflowers on the plains east of the Rockies.  I haven't found 
the name of the book yet, but I'm fascinated by the articles I am 
finding, many about colonization of areas after the ice ages.

It represents such a different attitude to say "plant migrations" 
rather than "alien invasions".

		Diane Whitehead

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