[MAIPC] mystery invasive in central NJ

[Rod Simmons]

It is Photinia serratifolia that is a rare escape in Virginia: http://vaplantatlas.org/index.php?do=plant&plant=3890

From: MAIPC <maipc-bounces at lists.maipc.org> On Behalf Of Patrick D. Kelly
Sent: Thursday, May 19, 2022 12:06 PM
To: MAIPC Listserve <maipc at lists.maipc.org>; INVASIVES at LISTSERV.UMD.EDU; Stephen Hiltner <stevehiltner at gmail.com>
Subject: Re: [MAIPC] mystery invasive in central NJ


Just to be clear and a cautionary head-off of any knee-jerk reactions by the public, you are NOT referring to the popular landscape plant Red Tip Photinia or Photinia x fraseri .

Yes, Dirr mentions in his tome Manual of Woody landscape Plants pg 809 observing this plant P. villossa Oriental Photinia escaping from a noted arboretum "with seedlings established along the road".

But no...cultivar Red Tip Photinia, the popular landscape plant, has not been noted for invasiveness. In fact, I'm surprised any of them survive at all due to rampant leaf spot disease.


Patrick D. Kelly, Principal and Horticulturist

PDK Horticultural, LLC Phragmites and Invasive Plant Control Services

301 Hope Road

Centreville, Md 21617

443-262-2079 mobile

https://<https://gcc02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fpdkhorticultural.com%2F&data=05%7C01%7Crod.simmons%40alexandriava.gov%7Cd854d488c2c14ac2c34908da39b177a1%7Cfeaa9b3143754aeeadccc76ad32a890b%7C0%7C0%7C637885732813528421%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=%2BG7SQjLaDUYDvf4OA4T3uaPnc3Rpg53vB%2FT6IwRta9I%3D&reserved=0>PDKH<https://gcc02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fpdkhorticultural.com%2F&data=05%7C01%7Crod.simmons%40alexandriava.gov%7Cd854d488c2c14ac2c34908da39b177a1%7Cfeaa9b3143754aeeadccc76ad32a890b%7C0%7C0%7C637885732813528421%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=%2BG7SQjLaDUYDvf4OA4T3uaPnc3Rpg53vB%2FT6IwRta9I%3D&reserved=0>orticultural.com<https://gcc02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fpdkhorticultural.com%2F&data=05%7C01%7Crod.simmons%40alexandriava.gov%7Cd854d488c2c14ac2c34908da39b177a1%7Cfeaa9b3143754aeeadccc76ad32a890b%7C0%7C0%7C637885732813528421%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=%2BG7SQjLaDUYDvf4OA4T3uaPnc3Rpg53vB%2FT6IwRta9I%3D&reserved=0>

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On Thursday, May 19, 2022, 08:51:08 AM EDT, Stephen Hiltner <stevehiltner at gmail.com<mailto:stevehiltner at gmail.com>> wrote:


Many on these listserves can be grateful that you haven't encountered Photinia villosa. I believe it is an escape from a nursery in Princeton, NJ, and is now spreading across the state. A few years back, I discovered another invasive small tree that may be in the same genus, which was changed from Photinia to Pourthiaea. Here are a couple photos of the foliage, comparing the two: https://photos.app.goo.gl/gptnqGTfHnVXZuNz9<https://gcc02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fphotos.app.goo.gl%2FgptnqGTfHnVXZuNz9&data=05%7C01%7Crod.simmons%40alexandriava.gov%7Cd854d488c2c14ac2c34908da39b177a1%7Cfeaa9b3143754aeeadccc76ad32a890b%7C0%7C0%7C637885732813684646%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=3VPQzeCdd1v3AXHZvIsH7HdvOxRWEtKFU%2F9B39b2SKI%3D&reserved=0> The Photinia villosa is much coarser.

I posted more photos<https://gcc02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.princetonnaturenotes.org%2F2022%2F01%2Fa-mystery-tree-in-princeton.html&data=05%7C01%7Crod.simmons%40alexandriava.gov%7Cd854d488c2c14ac2c34908da39b177a1%7Cfeaa9b3143754aeeadccc76ad32a890b%7C0%7C0%7C637885732813684646%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=lUtv%2Fqjo8ckIONl1ZY5SE%2F0a8wk5O6GPOiBuUONUUC0%3D&reserved=0> on my nature blog, and the species, whatever it is, is now being discussed on iNaturalist: https://www.inaturalist.org/observations/117251042<https://gcc02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.inaturalist.org%2Fobservations%2F117251042&data=05%7C01%7Crod.simmons%40alexandriava.gov%7Cd854d488c2c14ac2c34908da39b177a1%7Cfeaa9b3143754aeeadccc76ad32a890b%7C0%7C0%7C637885732813684646%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=frnG%2FaUV1VeV2oqC76MuV6DvNsVneSspIJUbDCFnsM8%3D&reserved=0>

I've been encountering more and more in Princeton preserves. Most are small and don't bloom, but I have one in my yard that gets some sun and just finished blooming.

Steve
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