[MAIPC] grass i.d.?
toni at gracefullygreen.com
toni at gracefullygreen.com
Wed Aug 17 13:06:22 PDT 2016
Thanks, everyone, for all your very helpful answers. So it definitely is foxtail, and it sounds like it is not desirable, but not an urgent threat. I need to advise the property owner, so what I think I will tell them is to cut it and keep an eye on it for now. It's on a slope, erosion is an issue, and the resources are limited. But I welcome suggestions, if anyone has any.
Thanks again,Toni Toni BaileyGracefully Green, LLC
Sustainable Landscape SpecialistsSilver Spring, Maryland 20910voice: 301-279-0234fax: 301-279-0134www.gracefullygreen.com
On Tuesday, August 16, 2016 7:38 AM, Rod Simmons <Rod.Simmons at alexandriava.gov> wrote:
It and its weedy brethren - Setaria viridis var. viridis and S. pumila ssp. pumila are all enormously well established throughout our area, unfortunately.
In fact, I believe the vast numbers now of S. viridis and S. pumila to have displaced the native S. parviflora in the more urbanized areas of our region today.
And it's not as if S. faberi is in any way uncommon either! One is virtually guaranteed of ID collection material in the D.C. area these days sadly on whatever route one takes!
S. parviflora, nonetheless, is still dominant in the largely clean and intact, sandy-loamy savannah-meadow below and throughout Mount Aventine at Chapman State Park in Charles County, MD.
I also have it in damp, low-lying swales at Jones Point Park along the Potomac River in the City of Alexandria, Virginia. Check out nearby Penny Hill Cemetery though for a comparison of how S. pumila (and similar crud) can wipe out other native meadow floristic biodiversity.
All the best,
Rod
On Aug 15, 2016, at 9:56 PM, "Marc Imlay" <ialm at erols.com> wrote:
Recently naturalized from China according to Brown and Brown. Is it invasive? Marc Imlay, PhD, Chair, MAIPC Biological control working Group Conservation biologist, Park Ranger Office, Non-native Invasive Plant Control coordinator. Marc.Imlay at pgparks.com (301) 442-5657 cell Natural and Historical Resources Division The Maryland-National Capital Park and Planning Commission Marc Imlay, PhD
Chair of the Biodiversity and Habitat Stewardship Committee for the Maryland Chapter of the Sierra Club. From: MAIPC [mailto:maipc-bounces at lists.maipc.org]On Behalf Of Soreng, Robert
Sent: Monday, August 15, 2016 10:16 AM
To: Swearingen, Jil <jil_swearingen at nps.gov>; Bergmann, Carole <Carole.Bergmann at montgomeryparks.org>
Cc: MAIPC at lists.maipc.org;Rod.Simmons at alexandriava.gov
Subject: Re: [MAIPC] grass i.d.? The photo seems to be of S. faberi as all have suggested, a few further notes: S. faberi is the more robust species, and the inflorescence is usuallly obviously lax, drooping from near the base to the middle. The bristles number (1) 3 (6) per spikelet, the longest are typically ca 10 mm long and finely scabrous, and the longest ones are at least 2xs as long as the spikelets S. viridis var. viridis inflorescences are short and erect. S. viridis var. major has longer inflorescences than var. viridis and they can nod near the top The bristles number 1 to 3 per spikelet, the longest are usually shorter, but vary from 5 to 10 mm long, and are distinctly scabrous with the hooks oriented toward the tips, they are shorter relative to the spikelet length than in S. faberi. Rob Robert Soreng PhD, Research Associate Dept. of Botany - US National Herbarium (US) National Museum of Natural History Smithsonian Institution 202-633-0981 sorengr at si.edu http://tropicos.org/Project/CNWG From: Swearingen, Jil [jil_swearingen at nps.gov]
Sent: Monday, August 15, 2016 9:13 AM
To: Bergmann, Carole
Cc: toni at gracefullygreen.com;MAIPC at lists.maipc.org; Soreng, Robert;Rod.Simmons at alexandriava.gov
Subject: Re: [MAIPC] grass i.d.? Carole, I agree with you about Setaria and think it's probably S. faberi.. http://plants.usda.gov/core/profile?symbol=SEFA With all the taxonomic changes and also not being a grass specialist, I'm copy Rod and Rob for their expert assistance. Thanks, Jil On Mon, Aug 15, 2016 at 8:57 AM, Bergmann, Carole <Carole.Bergmann at montgomeryparks.org> wrote:
It’s a species of Setaria = “foxtail grass”. There are many different Setarias. I’d like to see it closer but this looks like giant foxtail. =http://www.illinoiswildflowers.info/grasses/plants/giant_foxtail.htm 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 From: MAIPC [mailto:maipc-bounces at lists.maipc.org]On Behalf Of toni at gracefullygreen.com
Sent: Wednesday, August 10, 2016 10:33 AM
To: MAIPC at lists.maipc.org
Subject: [MAIPC] grass i.d.? Hello All: Can you help me identify this grass? I am attaching photos, taken last month. The plant is about 3-4' high, growing on a partly shady, disturbed slope in Montgomery County, MD. Many thanks for your help. Toni Bailey Toni Bailey Gracefully Green, LLC Sustainable Landscape Specialists Silver Spring, Maryland 20910 voice: 301-279-0234 fax: 301-279-0134 www.gracefullygreen.com
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