[NAFEX] Poison Oak question

Mark & Helen Angermayer hangermayer at isp.com
Sun May 13 21:04:58 EDT 2007


Same here in Kansas.  We have friends who have poison Ivy growing about that
high on their black locust.  There's two species that deserve each other.

Mark

----- Original Message ----- 
From: "Regina M. Kreger" <>
To: "North American Fruit Explorers" <nafex at lists.ibiblio.org>
Sent: Sunday, May 13, 2007 10:58 AM
Subject: Re: [NAFEX] Poison Oak question


> Around here (Maryland), poison ivy can grow 50' high if it's got
> something to climb that high.  I've seen it with 3"+ diameter trunks.
>
> Jim Fruth wrote:
>
> >    Several years ago I visited Itasca State Park and pictures of Poison
Ivy
> >and Poison Oak were displayed for public viewing.  The picture for
"Poison
> >Oak" was really Virginia Creeper (Parthenocissus quinquefolia).
> >    My botanical keys, Britton & Brown, lists Poison Ivy and Poison Oak
as
> >separate species separated mostly by leaf shape.  I've seen both leaf
shapes
> >on the same plant. From my experience, I would challenge the idea of
their
> >being separate species. I have traveled most of these United States and
have
> >encountered only one plant that could, perhaps, be a separate species.
It
> >was a California Poison Ivy that grew 12 to 15 ft. high, unlike its more
> >common cousin(?) that grows to about 2' high.
> >    What is your experience on this subject?
> >
> >Jim Fruth
> >Brambleberry Farm
> >Pequot Lakes, MN  56472
> >www.bberryfarm.com
> >(218)568-8483 [Store]
> >(218)831-7018 [My Cell]
> >
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