<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Katie,<div><br class="webkit-block-placeholder"></div><div>It (orange <i>I. capensis) </i>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 <i>Eupatorium purpureum</i> 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.</div><div><br class="webkit-block-placeholder"></div><div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 18px/normal 'Lucida Handwriting'; color: rgb(42, 127, 34); ">Karen</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal Helvetica; min-height: 14px; "><br></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal Helvetica; ">Karen Blumer</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal Helvetica; ">Ecosystem Based Management Projects</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal Helvetica; ">15 Dickerson Drive</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal Helvetica; ">Shoreham, NY 11786</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal Helvetica; ">631-821-3337</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal Helvetica; "><a href="mailto:growingwild@optonline.net">growingwild@optonline.net</a></div>
<div><br><div><div>On Jul 18, 2011, at 8:46 PM, Katie Fite wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div> <font face="Calibri, Verdana, Helvetica, Arial"><span style="font-size:11pt"><br> Has anyone had any experience with jewelweed (Impatiens) native to the eastern U. S. becoming weedy in valley marsh habitats in the intermountain West? <br> <br> I see that jewelweed <i>Impatiens capensis</i> (orange jewelweed) is listed as a King County (WA) “Weed of Concern”. <br> <br> This species is shown as having a yellow flowered form, which is what we are seeing.<br> <br> <a href="http://www.kingcounty.gov/environment/animalsAndPlants/noxious-weeds/laws/list.aspx">http://www.kingcounty.gov/environment/animalsAndPlants/noxious-weeds/laws/list.aspx</a><br> <br> Katie Fite<br> Western Watersheds Project<br> <a href="katie@westernwatersheds.org">katie@westernwatersheds.org</a><br> <br> </span></font> </div> <br>_______________________________________________<br>PCA's Alien Plant Working Group mailing list<br><a href="mailto:APWG@lists.plantconservation.org">APWG@lists.plantconservation.org</a><br>http://lists.plantconservation.org/mailman/listinfo/apwg_lists.plantconservation.org<br><br>Disclaimer<br>Any requests, advice or opinions posted to this list reflect ONLY the opinion of the individual posting the message.<br></blockquote></div><br></div></div></body></html>