<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40" xmlns:ns0="urn:schemas-microsoft-com:office:smarttags"><head><meta http-equiv=Content-Type content="text/html; charset=us-ascii"><meta name=Generator content="Microsoft Word 12 (filtered medium)"><!--[if !mso]><style>v\:* {behavior:url(#default#VML);}
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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=blue><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>This brings up an interesting question. If an exotic invasive species hybridizes with a closely related native species, are the offspring native plants or exotic?<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Bob <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> apwg-bounces@lists.plantconservation.org [mailto:apwg-bounces@lists.plantconservation.org] <b>On Behalf Of </b>Maze, Dominic<br><b>Sent:</b> Tuesday, July 19, 2011 11:42 AM<br><b>To:</b> 'Katie Fite'; apwg@lists.plantconservation.org<br><b>Subject:</b> Re: [APWG] Jewelweed<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:navy'>Hi Katie et alia,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:navy'> <i>Impatiens capensis</i> is, in my experience, a problematic species here west of the Cascade Range in the Pacific NW. The densities of this sp. are pretty amazing with the understory of riparian corridors often dominated by it. I’ve been seeing more and more of it in the Willamette Valley and surrounding ranges here in Oregon with seemingly little attention paid to it.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:navy'> Interestingly, some land managers still consider this species native here on the West Coast, probably due to confusion with our native, <i>I. ecalcarata</i> in some older floras and field guides. Ed Alverson of TNC wrote a short comment in reply to a posting on <i>I. capensis</i> at the Botany Photo of the Day website:<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:navy'><o:p> </o:p></span></p><p class=MsoNormal><span class=apple-style-span><span style='font-family:"Arial Narrow","sans-serif";color:#333333'>“Impatiens capensis is an introduced and invasive species in the Pacific Northwest, west of the Cascades. Peter Zika addressed this issue in a 2006 paper, "The status of Impatiens capensis (Balsaminaceae) on the</span></span><span style='font-family:"Arial Narrow","sans-serif";color:#333333'><br><span class=apple-style-span>Pacific Northwest coast", published in the Journal of the Torrey Botanical Club, vol. 133 pp. 593-600. In fact, I. capensis is spreading into the habitats of the uncommon native I. ecalcarata west of the Cascades, and the two species are hybridizing. This has created a situation where the native species is potentially being out-competed by both the introduced species and by their hybrids. Zika has published another paper on the hybrid, which he has named Impatiens x pacifica, see "Impatiens x pacifica (Balsaminaceae), a New Hybrid jewelweed from the Pacific Northwest Coast of North America", Novon vol. 16, pp. 443-448, 2006.</span>”<o:p></o:p></span></p><p class=MsoNormal><span class=apple-style-span><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:navy'>Add this spp. to <i>I. glandulifera</i> (a big problem) and <i>I. balfourii</i> (an escaping species which may be a problem in the future), and we’ve got our hands full out here with the touch-me-nots.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:navy'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:navy'><o:p> </o:p></span></p><div><p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";color:green'>Dominic Maze</span></b><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";color:green'> | </span><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";color:gray'>Invasive Species Coordinator </span><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";color:navy'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";color:gray'>City of </span><span style='font-size:10.0pt'><ns0:place w:insAuthor="dmaze" w:insDate="2011-07-19T08:39:00Z" w:endInsAuthor="dmaze" w:endInsDate="2011-07-19T08:39:00Z"><ns0:City w:insAuthor="dmaze" w:insDate="2011-07-19T08:39:00Z" w:endInsAuthor="dmaze" w:endInsDate="2011-07-19T08:39:00Z"><span style='font-family:"Calibri","sans-serif";color:gray'>Portland</span><span class=msoIns><ins cite="mailto:dmaze" datetime="2011-07-19T08:39"></ns0:City></ins></span></ns0:place></span><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";color:gray'> Environmental Services<o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt'><ns0:Street w:insAuthor="dmaze" w:insDate="2011-07-19T08:39:00Z" w:endInsAuthor="dmaze" w:endInsDate="2011-07-19T08:39:00Z"><ns0:address w:insAuthor="dmaze" w:insDate="2011-07-19T08:39:00Z" w:endInsAuthor="dmaze" w:endInsDate="2011-07-19T08:39:00Z"><span style='font-family:"Calibri","sans-serif";color:gray'>1120 SW 5th Avenue</span><span class=msoIns><ins cite="mailto:dmaze" datetime="2011-07-19T08:39"></ns0:address></ins></span></ns0:Street></span><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";color:gray'>, Room 1000<o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt'><ns0:place w:insAuthor="dmaze" w:insDate="2011-07-19T08:39:00Z" w:endInsAuthor="dmaze" w:endInsDate="2011-07-19T08:39:00Z"><ns0:City w:insAuthor="dmaze" w:insDate="2011-07-19T08:39:00Z" w:endInsAuthor="dmaze" w:endInsDate="2011-07-19T08:39:00Z"><span style='font-family:"Calibri","sans-serif";color:gray'>Portland</span><span class=msoIns><ins cite="mailto:dmaze" datetime="2011-07-19T08:39"></ns0:City></ins></span><span style='font-family:"Calibri","sans-serif";color:gray'>, </span><ns0:State w:insAuthor="dmaze" w:insDate="2011-07-19T08:39:00Z" w:endInsAuthor="dmaze" w:endInsDate="2011-07-19T08:39:00Z"><span style='font-family:"Calibri","sans-serif";color:gray'>Oregon</span><span class=msoIns><ins cite="mailto:dmaze" datetime="2011-07-19T08:39"></ns0:State></ins></span><span style='font-family:"Calibri","sans-serif";color:gray'> </span><ns0:PostalCode w:insAuthor="dmaze" w:insDate="2011-07-19T08:39:00Z" w:endInsAuthor="dmaze" w:endInsDate="2011-07-19T08:39:00Z"><span style='font-family:"Calibri","sans-serif";color:gray'>97204</span><span class=msoIns><ins cite="mailto:dmaze" datetime="2011-07-19T08:39"></ns0:PostalCode></ins></span></ns0:place></span><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";color:gray'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";color:gray'>p: (503) 823-4899<o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";color:gray'>f: (503) 823-5344</span><span style='color:navy'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";color:gray'><a href="mailto:dominic.maze@portlandoregon.gov">dominic.maze@portlandoregon.gov</a><o:p></o:p></span></p></div><div><div class=MsoNormal align=center style='text-align:center'><hr size=2 width="100%" align=center></div><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> apwg-bounces@lists.plantconservation.org [mailto:apwg-bounces@lists.plantconservation.org] <b>On Behalf Of </b>Katie Fite<br><b>Sent:</b> Monday, July 18, 2011 5:46 PM<br><b>To:</b> apwg@lists.plantconservation.org<br><b>Subject:</b> [APWG] Jewelweed</span><o:p></o:p></p></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'><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> <o:p></o:p></p></div></body></html>