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And all of your questions and comments are excellent - none of them "naive"! Discussions like these are important to better understanding all of this.</div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Rod Simmons <Rod.Simmons@alexandriava.gov><br>
<b>Sent:</b> Friday, April 22, 2022 5:35 PM<br>
<b>To:</b> Don Callihan <don_ihan@hotmail.com>; MAIPC@lists.maipc.org <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> Re: [MAIPC] Viburnum x rhytidophylloides</font>
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No, it has nothing to do with natural plant migration. The Arlington County, Virginia Hydrangea quercifolia are purely naturalized escapes from planted nursery specimens that were imported to the D.C. area well outside the plant's natural range. </div>
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This is purely a case of human caused spread of non-native flora, like Microstegium vimineum and most other weeds.</div>
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Thanks,</div>
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Rod </div>
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<div id="x_divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> Don Callihan <don_ihan@hotmail.com><br>
<b>Sent:</b> Friday, April 22, 2022 5:20 PM<br>
<b>To:</b> Rod Simmons <Rod.Simmons@alexandriava.gov>; MAIPC@lists.maipc.org <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> RE: [MAIPC] Viburnum x rhytidophylloides</font>
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<p class="x_x_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?</p>
<p class="x_x_MsoNormal"><a href="https://gcc02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fplants.usda.gov%2Fhome%2FplantProfile%3Fsymbol%3DHYQU3&data=05%7C01%7CRod.Simmons%40alexandriava.gov%7C22f9b2adfe43493d4a2208da24a5f058%7Cfeaa9b3143754aeeadccc76ad32a890b%7C0%7C0%7C637862592378558091%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=QT3Jf1yu2ORjt%2BiOqI3Xxa%2BzDAFWIPd3ZNN4c6%2Fk4rc%3D&reserved=0" originalsrc="https://plants.usda.gov/home/plantProfile?symbol=HYQU3" shash="aXSdWEP+xLZ7CYXNdIwGiDwaY5KCnCxY/ZXZip22OiruRMgYJqF/vYmg1crNp4TIsqa9MLMomM4nBX87k7G7DC0o1lJHSVpMeLtqAdRWMopVOw5T8WWHrVi/m2Zz92MVXRueSO0IHDE9PMKKDU4Ykobjb3wErFGlVsuz4Q63JZo=">https://plants.usda.gov/home/plantProfile?symbol=HYQU3</a></p>
<p class="x_x_MsoNormal">I realize these are naďve questions. Just interested in hearing from the experienced botanists among us.</p>
<p class="x_x_MsoNormal">Thanks,</p>
<p class="x_x_MsoNormal">Don</p>
<p class="x_x_MsoNormal"> </p>
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<p class="x_x_MsoNormal"><b>Don Callihan</b></p>
<p class="x_x_MsoNormal">Cockeysville, MD 21030</p>
<p class="x_x_MsoNormal">410-961-8132 (cellular)</p>
<p class="x_x_MsoNormal"><a href="mailto:don_ihan@hotmail.com">don_ihan@hotmail.com</a>
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<p class="x_x_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</p>
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<p class="x_x_MsoNormal"><span style="font-size:12.0pt; color:black">Hi John,</span></p>
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<p class="x_x_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></span></p>
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<p class="x_x_MsoNormal"><span style="font-size:12.0pt; color:black"> </span></p>
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<p class="x_x_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"></span></p>
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<p class="x_x_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"></span></p>
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<p class="x_x_MsoNormal"><span style="font-size:12.0pt; color:black"> </span></p>
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<p class="x_x_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></span></p>
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<p class="x_x_MsoNormal"><span style="font-size:12.0pt; color:black"> </span></p>
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<p class="x_x_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"></span></p>
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<p class="x_x_MsoNormal"><span style="font-size:12.0pt; color:black"> </span></p>
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<p class="x_x_MsoNormal"><span style="font-size:12.0pt; color:black; background:white">All the best,</span><span style="font-size:12.0pt; color:black"></span></p>
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<p class="x_x_MsoNormal"><span style="font-size:12.0pt; color:black"> </span></p>
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<p class="x_x_MsoNormal"><span style="font-size:12.0pt; color:black; background:white">Rod</span><span style="font-size:12.0pt; color:black"></span></p>
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<p class="x_x_MsoNormal"><span style="font-size:12.0pt; color:black"> </span></p>
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<p class="x_x_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
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<p class="x_x_MsoNormal"><span style="font-size:12.0pt; color:black">Sent: Thursday, April 21, 2022 11:09 AM</span></p>
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<p class="x_x_MsoNormal"><span style="font-size:12.0pt; color:black">To: <a href="mailto:MAIPC@lists.maipc.org">
MAIPC@lists.maipc.org</a></span></p>
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<p class="x_x_MsoNormal"><span style="font-size:12.0pt; color:black">Subject: [MAIPC] Viburnum rhytidophylloides</span></p>
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<p class="x_x_MsoNormal"><span style="font-size:12.0pt; color:black"> </span></p>
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<p class="x_x_MsoNormal"><span style="font-size:12.0pt; color:black">Is Viburnum rhytidophylloides, commonly sold as the cultivar Allegheny viburnum, on invasive lists?</span></p>
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<p class="x_x_MsoNormal"><span style="font-size:12.0pt; color:black"> </span></p>
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<p class="x_x_MsoNormal"><span style="font-size:12.0pt; color:black">Anecdotal?</span></p>
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<p class="x_x_MsoNormal"><span style="font-size:12.0pt; color:black">Lookalike to V rhytidophyllym, leatherleaf viburnum, which IS an invasive.</span></p>
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<p class="x_x_MsoNormal"><span style="font-size:12.0pt; color:black">Thanks in advance.</span></p>
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<p class="x_x_MsoNormal"><span style="font-size:12.0pt; color:black"> </span></p>
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<p class="x_x_MsoNormal"><span style="font-size:12.0pt; color:black">John Nystedt</span></p>
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