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Hi Dusan & All, Aug 27, 2010
I don't know the background of this Costal Plain designation, but from
context, I assume it is based partly on the distribution in NS (mainly
southwestern counties) and partly on the wider distribution (less
continental than rybergii).
Fernald has radicans west to the Great Lakes region but the most recent
Roland does not mention this.
YT, Dave Webster, Kentville
----- Original Message -----
From: "Dusan Soudek" <soudekd@ns.sympatico.ca>
To: <naturens@chebucto.ns.ca>
Sent: Friday, August 27, 2010 4:18 PM
Subject: [NatureNS] Re: Poison Ivy
> Nuke Poison Ivy (PI)? That may be a slight over-reaction. What surprises
> me is that PI (Toxicodendron radicans) is included in the Atlantic Coastal
> Plain Flora, as per the N.S. Nature Trust's "Guide to the Atlantic Coastal
> Plain Flora of Nova Scotia" (2005), in spite of its wide range in Eastern
> Canada and U.S. Could someone comment?
> I continue to be surprised by how many outdoorsy people cannot identify
> it in the field, in spite of having spent years in the out of doors.
> In a recent medical article I've read that 80 % of the population is
> allergic to the above species. Sadly, there was no indication of the
> source
> of this tidbit of information. Which population? I suspect that the
> percentage refers to the fraction of the population who become allergic
> following repeated physical contact with the plant.
> Dusan Soudek
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