[MAIPC] New EDRR species in the Mid-Atlantic

[Farrah, Mary]

I'm glad to hear that it hasn't been seen it in the natural areas of Montgomery county-yet!

Mark Frey from the NCR EPMT just the attached photo of what definitely looks like Corydalis incisa growing in Wolf Trap this morning. He previously thought it was Fumaria officinalis because the species look so similar, but since it's in fruit now it appears to be the former.

Mary

From: Ruth Douglas [mailto:cvilleruth at embarqmail.com]
Sent: Wednesday, April 29, 2015 10:18 AM
To: 'Bergmann, Carole'; Farrah, Mary; maipc at lists.maipc.org
Cc: 'Larry Haller'
Subject: RE: [MAIPC] New EDRR species in the Mid-Atlantic

I may have found it in the flood plain of a creek very near where I live (Charlottesville, VA), but I want that sighting to be verified. It looks a lot like Fumitory, Fumaria officinalis, but it's seed pods are elongate while those of Fumitory are "globose to weakly obovoid" (per Flora of Virginia).

Any tips other than flame-weeding?

Ruth

From: MAIPC [mailto:maipc-bounces at lists.maipc.org] On Behalf Of Bergmann, Carole
Sent: Wednesday, April 29, 2015 9:53 AM
To: Farrah, Mary; maipc at lists.maipc.org
Cc: Larry Haller
Subject: Re: [MAIPC] New EDRR species in the Mid-Atlantic

Corydalis incisa can jump around your garden.
My husband has been flame-weeding patches of it in our yard (Clarksburg, Maryland)for several years.
I think it would occupy the same niche as lesser celandine, but that it  could also grow in somewhat drier, partially shaded places very well.
However, I haven't seen it in any natural areas to date, and I do look for such things :)

Carole

Carole F. Bergmann
Forest Ecologist/Field Botanist
Park Planning and Stewardship Division
Montgomery Parks
Maryland-National Capital Park & Planning Commission
12535 Milestone Manor Lane
Germantown, Maryland 20876
301-962-1348
Carole.Bergmann at montgomeryparks.org<mailto:Carole.Bergmann at montgomeryparks.org>



From: MAIPC [mailto:maipc-bounces at lists.maipc.org] On Behalf Of Farrah, Mary
Sent: Tuesday, April 28, 2015 2:07 PM
To: maipc at lists.maipc.org<mailto:maipc at lists.maipc.org>
Cc: Larry Haller
Subject: [MAIPC] New EDRR species in the Mid-Atlantic

Hi All,
I got an email from a DC resident, Larry Haller, who has Corydalis incisa growing aggressively growing in his yard. According to this link<http://blogs.nybg.org/science-talk/2014/07/detecting-an-invasive-plant-before-its-too-late/> it's a big  problem in NY. It occupies the same niche as fig buttercup. I'm sending this email sans photos, so that this third email attempt will actually make it to you all. Check the link above for photos.

The USDA only lists it occurring in NY, but now that there's been multi-state communication about this species, we're finding that it is more wide spread in this region than previously thought. Larry posted photos of this plant on some local listservs and found someone from a nearby neighborhood has it growing in their yard (yet to be verified). NY says that Philly reported a sighting. There was also a potential sighting in Northern Virginia. We should add it to our EDRR list. Has anyone else encountered this species in their region?

Best,
Mary Farrah | Environment & Natural Resources  Extension Agent

The Center for Sustainable Development
COOPERATIVE EXTENSION SERVICE
College of Agriculture, Urban Sustainability & Environmental Sciences (CAUSES)
The University of the District of Columbia
4200 Connecticut Ave., NW | Washington, DC 20008

mfarrah at udc.edu<https://udcmsg008.firebirds.udc.edu/owa/UrlBlockedError.aspx> | direct 202.274.6682
If I don't promptly respond to your email it means I'm working in the field. I will reply when I return to the office.
P Please consider the environment before printing this email

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