[MAIPC] Aethusa cynapium, fool's parsley or poison parsley

[Donna Ford-Werntz]

Hi all,  WVU herbarium has specimens from

Pocahontas Co. WV (1956) & Duchess Co. NY (1971).

Thanks for bringing this to attention,


Donna Ford-Werntz, Herbarium Curator
Associate Clinical Professor
Biology Dept., Box 6057
Life Sci. Bldg., 53 Campus Dr.
West Virginia Univ.
Morgantown, WV 26506
304-293-0794; biology.wvu.edu
________________________________
From: MAIPC <maipc-bounces at lists.maipc.org> on behalf of Jewitt, Amy <AJewitt at paconserve.org>
Sent: Monday, July 18, 2016 4:34 PM
To: Muth, Norris (MUTH); maipc at lists.maipc.org; John Ambler (john.ambler at verizon.net)
Subject: Re: [MAIPC] Aethusa cynapium, fool's parsley or poison parsley

Thanks for keeping me in the loop Norris (and for putting a plug in for iMapInvasives!).

John, please send me an email and we can get A. cymapium added into PA iMapInvasives right away!

Best,

Amy L. Jewitt
iMapInvasives Coordinator
Pennsylvania Natural Heritage Program
Western Pennsylvania Conservancy
800 Waterfront Drive, Pittsburgh, PA 15222
Office: (412) 586-2305
Fax: (412) 231-1414
ajewitt at paconserve.org


-----Original Message-----
From: MAIPC [mailto:maipc-bounces at lists.maipc.org] On Behalf Of Muth, Norris (MUTH)
Sent: Monday, July 18, 2016 4:06 PM
To: maipc at lists.maipc.org
Subject: Re: [MAIPC] Aethusa cynapium, fool's parsley or poison parsley

In addition to EddMaps/MAEDN, it may help the data get on to iMap Invasives for PA. Amy Jewitt is the contact there. She usually keeps an eye on this listserve as well - but it wouldn't hurt to contact her directly.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Norris Z. Muth, Associate Professor of Biology muth at juniata.edu<mailto:muth at juniata.edu>

office: 1054 VonLiebig Center for Science Office Hours Spring 2016 M 10-11:30, T&F 11-12,  or by appointment

Juniata College
1700 Moore St.
Huntingdon, PA 16652
tel: 814-641-3632
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

From: John Ambler <john.ambler at verizon.net<mailto:john.ambler at verizon.net>>
Date: Monday, July 18, 2016 at 3:56 PM
To: "maipc at lists.maipc.org<mailto:maipc at lists.maipc.org>" <maipc at lists.maipc.org<mailto:maipc at lists.maipc.org>>
Subject: [MAIPC] Aethusa cynapium, fool's parsley or poison parsley

I am a volunteer at Tucquan Glen Nature Preserve, removing invasive plants there.

During the week of July 4 I was removing garlic mustard along Tucquan Glen Rd. between Hilldale and River Rds., the first time I pulled it there.  I found ~40 large Aethusa cynapium (fool's parsley, poison parsley) along 35 or 40 feet of the road edge.  Plants were up to 5 feet tall with both flowers and maturing fruit.  Identification was independently verified by two botanists.  Tucquan Glen Rd. edges are infrequently mowed, and this must have favored its growth along the sunlit gravelly, road edge.

At first I thought the maturing plants were annuals, but when I removed them I saw that there were many rosettes, and so it must be biennial at this site.

I found another two maturing plants 400 ft. west on the road, and there were scattered rosettes between the two patches of maturing plants.  The rosettes were spread away from the maturing plants, no doubt by mowing.  The rosettes look much like flat Italian parsley.

I removed all of the maturing plants.  Some of the maturing plants had fruit, some of which were just starting to yellow.  I plan to let them rot in heavy sealed bags, and then pack them tightly and send them to the county incinerator.  I also removed most of the rosettes, but I still have some to remove including some on a steep riprap bank above Tucquan Creek.  I don't think it has spread along the creek, but I will need to get permission from land owners to check.

There are no records of this unwanted plant in Lancaster County.  John Kunsman, a botanist with the PA Natural Heritage Program, said he has not seen it.  I am trying to get it onto the EDDMapS (MAEDN), invasive plant list so that I can report it there.

Has anyone else noticed this plant?  It smells like poison hemlock and is said to have the same toxin.  It is definitely something we don't want spreading.

The plant has compound umbels with tiny white flowers.  The umbelets have 2 to 5 narrow bracts hanging down.

John Ambler
Lancaster

[cid:image004.jpg at 01D1E10C.EA1BC280]

Note thin bractlets on umbelets.

[cid:image007.jpg at 01D1E10C.EA1BC280]

Leaf of maturing plant.

[cid:image009.jpg at 01D1E10C.EA1BC280]

First-year rosette, some leaves cut off for clarity

[cid:image010.jpg at 01D1E10C.EA1BC280]

Plants along road July 8



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