Yes, and unfortunately, in our two huge North American countries, the rules are made nationally, rather than regionally, which would make sense. Diane Whitehead Canada On 2-Sep-08, at 11:44 AM, Jane McGary wrote: > , there are probably habitats somewhere in the United States > where almost any plant from anywhere in the world could take hold, > from the > tundra of Point Barrow to the swamps of Louisiana.