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<title>Jewelweed</title>
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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Hi Katie et alia,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> <i><span style='font-style:
italic'>Impatiens capensis</span></i> is, in my experience, a problematic
species here west of the <st1:place w:st="on">Cascade Range</st1:place> 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 <st1:PlaceName w:st="on">Willamette</st1:PlaceName> <st1:PlaceType
w:st="on">Valley</st1:PlaceType> and surrounding ranges here in <st1:State
w:st="on"><st1:place w:st="on">Oregon</st1:place></st1:State> with seemingly
little attention paid to it.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> Interestingly, some land managers
still consider this species native here on the West Coast, probably due to
confusion with our native, <st1:place w:st="on"><i><span style='font-style:
italic'>I.</span></i></st1:place><i><span style='font-style:italic'>
ecalcarata</span></i> in some older floras and field guides. Ed Alverson
of TNC wrote a short comment in reply to a posting on <st1:place w:st="on"><i><span
style='font-style:italic'>I.</span></i></st1:place><i><span style='font-style:
italic'> capensis</span></i> at the Botany Photo of the Day website:<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><span class=apple-style-span><font size=3 color="#333333"
face="Arial Narrow"><span style='font-size:12.0pt;font-family:"Arial Narrow";
color:#333333'>“Impatiens capensis is an introduced and invasive species in the
<st1:place w:st="on">Pacific Northwest</st1:place>, west of the Cascades. Peter
Zika addressed this issue in a 2006 paper, "The status of Impatiens
capensis (Balsaminaceae) on the</span></font></span><font color="#333333"
face="Arial Narrow"><span style='font-family:"Arial Narrow";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 <st1:place
w:st="on">I.</st1:place> 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 <st1:City w:st="on">pacifica</st1:City>, see "Impatiens x <st1:place
w:st="on"><st1:City w:st="on">pacifica</st1:City></st1:place> (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></font></p>
<p class=MsoNormal><span class=apple-style-span><font size=3
face="Times New Roman"><span style='font-size:12.0pt'><o:p> </o:p></span></font></span></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Add this spp. to <i><span
style='font-style:italic'>I. glandulifera</span></i> (a big problem) and <st1:place
w:st="on"><i><span style='font-style:italic'>I.</span></i></st1:place><i><span
style='font-style:italic'> balfourii</span></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></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<div>
<p class=MsoNormal style='margin-left:.5in'><b><font size=2 color=green
face=Calibri><span style='font-size:10.0pt;font-family:Calibri;color:green;
font-weight:bold'>Dominic Maze</span></font></b><font size=2 color=green
face=Calibri><span style='font-size:10.0pt;font-family:Calibri;color:green'> | </span></font><font
size=2 color=gray face=Calibri><span style='font-size:10.0pt;font-family:Calibri;
color:gray'>Invasive Species Coordinator </span></font><font size=2 color=navy
face=Calibri><span style='font-size:10.0pt;font-family:Calibri;color:navy'><o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=gray
face=Calibri><span style='font-size:10.0pt;font-family:Calibri;color:gray'>City
of </span></font><font size=2 face=Calibri><span style='font-size:10.0pt;
font-family:Calibri'><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"><st1:City w:st="on"><st1:place w:st="on"><font
color=gray><span style='color:gray'>Portland</span></font></st1:place></st1:City></ns0:City></ns0:place><font
color=gray><span style='color:gray'> Environmental Services<o:p></o:p></span></font></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Calibri><span
style='font-size:10.0pt;font-family:Calibri'><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"><st1:Street w:st="on"><st1:address w:st="on"><font
color=gray><span style='color:gray'>1120 SW 5th Avenue</span></font></st1:address></st1:Street></ns0:address></ns0:Street><font
color=gray><span style='color:gray'>, Room 1000<o:p></o:p></span></font></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Calibri><span
style='font-size:10.0pt;font-family:Calibri'><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"><st1:place w:st="on"><st1:City w:st="on"><font
color=gray><span style='color:gray'>Portland</span></font></st1:City></ns0:City></st1:place><font
color=gray><span style='color:gray'>, </span></font><ns0:State
w:insAuthor="dmaze" w:insDate="2011-07-19T08:39:00Z" w:endInsAuthor="dmaze"
w:endInsDate="2011-07-19T08:39:00Z"><st1:State w:st="on"><font color=gray><span
style='color:gray'>Oregon</span></font></st1:State></ns0:State><font
color=gray><span style='color:gray'> </span></font><ns0:PostalCode
w:insAuthor="dmaze" w:insDate="2011-07-19T08:39:00Z" w:endInsAuthor="dmaze"
w:endInsDate="2011-07-19T08:39:00Z"><st1:PostalCode w:st="on"><font
color=gray><span style='color:gray'>97204</span></font></st1:PostalCode></ns0:PostalCode></ns0:place><font
color=gray><span style='color:gray'><o:p></o:p></span></font></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=gray
face=Calibri><span style='font-size:10.0pt;font-family:Calibri;color:gray'>p:
(503) 823-4899<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=gray
face=Calibri><span style='font-size:10.0pt;font-family:Calibri;color:gray'>f:
(503) 823-5344</span></font><font color=navy><span style='color:navy'><o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=gray
face=Calibri><span style='font-size:10.0pt;font-family:Calibri;color:gray'><a
href="mailto:dominic.maze@portlandoregon.gov">dominic.maze@portlandoregon.gov</a></span></font><font
size=2 color=gray face=Calibri><span style='font-size:10.0pt;font-family:Calibri;
color:gray'><o:p></o:p></span></font></p>
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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>
apwg-bounces@lists.plantconservation.org
[mailto:apwg-bounces@lists.plantconservation.org] <b><span style='font-weight:
bold'>On Behalf Of </span></b>Katie Fite<br>
<b><span style='font-weight:bold'>Sent:</span></b> Monday, July 18, 2011 5:46
PM<br>
<b><span style='font-weight:bold'>To:</span></b>
apwg@lists.plantconservation.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> [APWG] Jewelweed</span></font><o:p></o:p></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt;
font-family:Calibri'><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><span style='font-style:italic'>Impatiens capensis</span></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> <o:p></o:p></p>
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