[NAFEX] Poison Oak question

Regina M. Kreger regina at kreger.net
Sun May 13 11:58:48 EDT 2007


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] 
>
>_______________________________________________
>nafex mailing list 
>nafex at lists.ibiblio.org
>
>Reproduction of list messages or archives is not allowed.
>This includes distribution on other email lists or reproduction on web sites.
>Permission to reproduce is NEVER granted, so don't claim you have permission!
>
>**YOU MUST BE SUBSCRIBED TO POST!**
>Posts from email addresses that are not subscribed are discarded.
>No exceptions.  
>----
>To subscribe or unsubscribe, go to the bottom of this page (also can be used to change other email options):
>http://lists.ibiblio.org/mailman/listinfo/nafex
>
>File attachments are NOT stripped by this list.
>TAKE STEPS TO PROTECT YOURSELF FROM COMPUTER VIRUSES!
>Please do not send binary files.
>Use plain text ONLY in emails!
>
>NAFEX web site:   http://www.nafex.org/
>  
>



More information about the nafex mailing list