[MAIPC] What Is It?

[Atha, Daniel]

Correction to my earlier message.

On closer examination I think this is Persicaria virginiana, American Jumpseed.  The observer described "small purplish flower on a spikey stem"  fits the species, except the purplish. I did not see ocreae in the photos, but they can be deciduous or obscure.  I do see pale hairs on the leaf margin consistent with Persicaria virginiana.

Thank you Milo for your helpful discussion.

Daniel

-:|:- -:|:- -:|:- -:|:- -:|:- -:|:-
Daniel Atha
Director of Conservation Outreach,
Center for Conservation Strategy
The New York Botanical Garden
2900 Southern Blvd., Bronx, NY 10458
Office: 718-817-8896 | Mobile 718-514-3922
Email: datha at nybg.org<mailto:datha at nybg.org>


From: MAIPC [mailto:maipc-bounces at lists.maipc.org] On Behalf Of Atha, Daniel
Sent: Tuesday, August 01, 2017 1:33 PM
To: Patricia Greenberg <pgreenberg at reston.org>; maipc at lists.maipc.org
Subject: Re: [MAIPC] What Is It?


This sender failed our fraud detection checks and may not be who they appear to be. Learn about spoofing<http://aka.ms/LearnAboutSpoofing>

Feedback<http://aka.ms/SafetyTipsFeedback>

Dear Patricia and Milo,

I'm sorry your message was lost in my inbox until now.

This is not Polygonaceae.  The petiole appears to form a ring around the stem like Magnoliaceae, but there is no ocreae.  Could it be a young Lindera benzoin?

Kind regards,

Daniel

-:|:- -:|:- -:|:- -:|:- -:|:- -:|:-
Daniel Atha
Director of Conservation Outreach,
Center for Conservation Strategy
The New York Botanical Garden
2900 Southern Blvd., Bronx, NY 10458
Office: 718-817-8896 | Mobile 718-514-3922
Email: datha at nybg.org<mailto:datha at nybg.org>



From: MAIPC [mailto:maipc-bounces at lists.maipc.org] On Behalf Of Patricia Greenberg
Sent: Tuesday, June 20, 2017 3:07 PM
To: maipc at lists.maipc.org<mailto:maipc at lists.maipc.org>
Subject: [MAIPC] FW: What Is It?

Hi,
We are working to figure out which invasive polygonum is in the photo below.

Any ideas?

Thank you in advance,
Patricia


Patricia Pearl Greenberg
Environmental Resource Supervisor
Reston Association
12250 Sunset Hills Rd
Reston, VA 20190
(703) 435-6552
pgreenberg at reston.org<mailto:pgreenberg at reston.org>
www.reston.org<http://www.reston.org/>


From: Margo Sterling [mailto:jamasterling at gmail.com]
Sent: Tuesday, June 20, 2017 2:24 PM
To: Claudia Thompson-Deahl
Subject: What Is It?

Hello, Claudia.

My neighbor allerted me this latest invasion of our woods. This is a small green plant that has spread rapidly, and is shallow rooted. I have tried to use my 'plant identifier' app, but got totally confused. They eventually bear a small purplish flower on a spikey stem.

Would appreciated an identification, and some advice as to how to get rid of it. I am perfectly willing to pull them all up, but would appreciate a go ahead from you.
Thanks for your help.
Margo Sterling

[cid:image001.jpg at 01D30C45.3C952380]

[cid:image002.jpg at 01D30C45.3C952380]



Sent from my iPad
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.maipc.org/pipermail/maipc-maipc.org/attachments/20170803/6e66628f/attachment-0001.htm>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image001.jpg
Type: image/jpeg
Size: 2656762 bytes
Desc: image001.jpg
URL: <http://lists.maipc.org/pipermail/maipc-maipc.org/attachments/20170803/6e66628f/attachment-0002.jpg>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image002.jpg
Type: image/jpeg
Size: 3429926 bytes
Desc: image002.jpg
URL: <http://lists.maipc.org/pipermail/maipc-maipc.org/attachments/20170803/6e66628f/attachment-0003.jpg>