[APWG] Jewelweed
Karen Blumer
growingwild at optonline.net
Wed Jul 20 12:08:26 CDT 2011
Katie,
It (orange I. capensis) certainly can take over entire areas here in
the east. It has become invasive on the hills and dales of my own yard
on Long Island, NY - not a wetland but extension of mesic Appalachian
oak-hickory woodland association. I have seen it in huge patches
interspersed with Eupatorium purpureum upland of wetland edges in
suburban lawn settings around here -- attractive but in definite
monocultures, or I guess with the Joe pyeweed, duocultures. I'll be
more on the lookout for it in its natural habitat. I don't recall it
being dominant or invasive there.
Karen
Karen Blumer
Ecosystem Based Management Projects
15 Dickerson Drive
Shoreham, NY 11786
631-821-3337
growingwild at optonline.net
On Jul 18, 2011, at 8:46 PM, Katie Fite wrote:
>
> Has anyone had any experience with jewelweed (Impatiens) native to
> the eastern U. S. becoming weedy in valley marsh habitats in the
> intermountain West?
>
> I see that jewelweed Impatiens capensis (orange jewelweed) is listed
> as a King County (WA) “Weed of Concern”.
>
> This species is shown as having a yellow flowered form, which is
> what we are seeing.
>
> http://www.kingcounty.gov/environment/animalsAndPlants/noxious-weeds/laws/list.aspx
>
> Katie Fite
> Western Watersheds Project
> katie at westernwatersheds.org
>
>
>
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