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<p class="MsoNormal">Realizing that <i>Hydrangea quercifolia</i> W. Bartram native range is the southeastern US (Tennessee and North Carolina and south), I’m curious why it is considered “invasive” in Arlington County, Virginia, Northern movement of native
ranges is observed and predicted for many nonnative plants. Shouldn’t we consider that such range extension is a natural consequence of warming. To label a North American native plant as invasive, although nonnative to NoVA historically, is lumping it in with
other nonnative Hydrangeas appropriate? Is there any evidence that <i>H. quercifolia</i> inflorescence is a decent food source for pollinators?<o:p></o:p></p>
<p class="MsoNormal"><a href="https://plants.usda.gov/home/plantProfile?symbol=HYQU3">https://plants.usda.gov/home/plantProfile?symbol=HYQU3</a><o:p></o:p></p>
<p class="MsoNormal">I realize these are naïve questions. Just interested in hearing from the experienced botanists among us.<o:p></o:p></p>
<p class="MsoNormal">Thanks,<o:p></o:p></p>
<p class="MsoNormal">Don<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><b>Don Callihan<o:p></o:p></b></p>
<p class="MsoNormal">Cockeysville, MD 21030<o:p></o:p></p>
<p class="MsoNormal">410-961-8132 (cellular)<o:p></o:p></p>
<p class="MsoNormal"><a href="mailto:don_ihan@hotmail.com">don_ihan@hotmail.com</a>
<o:p></o:p></p>
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<p class="MsoNormal"><b>From:</b> Rod Simmons <Rod.Simmons@alexandriava.gov> <br>
<b>Sent:</b> Friday, April 22, 2022 12:28 PM<br>
<b>To:</b> MAIPC@lists.maipc.org<br>
<b>Cc:</b> Jil Swearingen <jilswearingen@gmail.com>; Judy Fulton <jfulton5@gmail.com>; Wright, Robert <RWright@wetlands.com>; Chuck Bargeron <cbargero@uga.edu>; Lee Patrick <lee@ipc.us.com>; Steven Manning <steve@ipc.us.com>; Alex Taylor <alex@ipc.us.com>;
Kayla Lynch <kayla@ipc.us.com><br>
<b>Subject:</b> [MAIPC] Viburnum x rhytidophylloides<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Hi John,<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">I'm finding the way overplanted Viburnum x rhytidophylloides to be more invasive than the much longer leaved lookalike <span style="background:white">V. rhytidophyllym.</span><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black;background:white">I've now collected Viburnum x rhytidophylloides from D.C., Maryland (Montgomery County), and City of Alexandria and Arlington County in northern Virginia.</span><span style="font-size:12.0pt;color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black;background:white">Both taxa, however, are still very rare, naturalized escapes - at least in the D.C. region at this point. (I've got only one collection of V. rhytidophyllym from the D.C. region
- in the City of Alexandria.)</span><span style="font-size:12.0pt;color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Still, I list <span style="background:white">V. rhytidophyllym in the Non-Native Invasive Plants of the City of Alexandria, Virginia list and will definitely add Viburnum x rhytidophylloides to
the next revision, along with Hydrangea quercifolia, which I've documented as invasive in Arlington County.</span><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black;background:white">I also plan on including Viburnum x rhytidophylloides in my next Noteworthy Collections paper.</span><span style="font-size:12.0pt;color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black;background:white">All the best,</span><span style="font-size:12.0pt;color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black;background:white">Rod</span><span style="font-size:12.0pt;color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">From: MAIPC <<a href="mailto:maipc-bounces@lists.maipc.org">maipc-bounces@lists.maipc.org</a>> On Behalf Of John Nystedt
<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Sent: Thursday, April 21, 2022 11:09 AM<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">To: <a href="mailto:MAIPC@lists.maipc.org">
MAIPC@lists.maipc.org</a><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Subject: [MAIPC] Viburnum rhytidophylloides<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Is Viburnum rhytidophylloides, commonly sold as the cultivar Allegheny viburnum, on invasive lists?<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Anecdotal?<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Lookalike to V rhytidophyllym, leatherleaf viburnum, which IS an invasive.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Thanks in advance.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">John Nystedt<o:p></o:p></span></p>
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