[MAIPC] Invasive? (Mazus)

Thu May 5 13:45:12 PDT 2022

Blue Ridge PRISM was also contacted about this species.

Based on the flower this looks like *Mazus miquelii* which is a perennial.
It is quite a cute little plant with a lovely flower, but invasive. Yikes.

https://michiganflora.net/species.aspx?id=1907
https://gobotany.nativeplanttrust.org/species/mazus/miquelii/

http://vaplantatlas.org/index.php?do=plant&plant=645&search=Search

My initial thoughts on control that I conveyed to the concerned landowner:

I could not readily find any specific control recommendations. Assuming it
was restricted to the lawn, treating it as a lawn seems like a good option
and a lawn-care company would be helpful in this instance. Also,
contacting a local extension service for assistance. Controlling weeds in
lawns is not my area of expertise and I am not super familiar with the
chemical control options on the market that would be most effective.  The
local extension service may be a good option or at least able to connect to
a turfgrass specialist.

At a minimum, weed whack the plant to remove the flowers and interrupt
reproduction for this year (?). Or if you do not care about the grass, use
a glyphosate product to control the plants.  Triclopyr amine should not
impact the grass, but control the Mazus.

Does anyone have any additional experience or other recommendations for
this plant?

Beth Mizell

_______________________________________
Elizabeth Anne Mizell
Program Director | Blue Ridge PRISM
beth at blueridgeprism.org

Blue Ridge PRISM <https://blueridgeprism.org/> is a partnership for
regional invasive species management in Virginia.

On Thu, May 5, 2022 at 3:16 PM Donna Ford-Werntz <dford2 at wvu.edu> wrote:

> Patricia, Both Mazus species are known for WV: M. miquelii (4 of 55
> counties) since 1938 (garden) & M. pumilus (2 cos.) in 1980+.
> All 8 collections in the WVU herbarium are from garden, lawn, or sidewalk
> paver localities (planted &/or naturalized/spreading).
>
> Donna Ford-Werntz, Ph.D.
> Service Professor/Herbarium Curator
> 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 Greenberg,
> Patricia <Patricia.Greenberg at fairfaxcounty.gov>
> *Sent:* Monday, May 2, 2022 8:24 AM
> *To:* MAIPC at Lists.maipc.org <maipc at lists.maipc.org>
> *Subject:* [MAIPC] FW: Invasive?
>
> Hi,
>
> I’m not familiar with Mazus miquelii or Mazus pumilus – a perennial,
> creeping groundcover native to Japan and China. It is considered an
> invasive in the northeast according to Wikipedia. I’m finding much
> information about it being invasive on the web and wanted to ask the MAIPC
> what experience you’ve had with this plant? EddMaps only has Mazus pumilus
> listed in the New York and New Jersey area. iNaturalist had a few points
> and one listed here in Reston, VA.
>
>
>
> USDA has it listed in more states.
>
> USDA Plants Database
> <https://plants.usda.gov/home/plantProfile?symbol=MAMI4>
>
>
> Would you consider it an EDRR species?
>
> See photos below.
>
>  Thank you,
>
>
> *Patricia Pearl Greenberg Ecologist II*
>
> *Invasive Management Area (IMA) Program Manager*
>
> *Natural Resource Branch*
>
> *Fairfax County Park Authority*
>
> *Office: 703-324-8673*
>
> patricia.greenberg at fairfaxcounty.gov
>
> *(She/Her/Hers)*
>
> *ISA Certified Arborist,* *MA-6067A*
>
> *ISA Tree Risk Assessment Qualified*
>
> <https://www.fairfaxcounty.gov/parks/invasive-management-area>
>
> *From:* Sara H <sh12sh34 at gmail.com>
> *Sent:* Sunday, May 1, 2022 10:43 PM
> *To:* Medina, Gloria <Gloria.Medina at fairfaxcounty.gov>; Greenberg,
> Patricia <Patricia.Greenberg at fairfaxcounty.gov>
> *Subject:* Invasive?
>
>
>
> Hi ladies
> Is this invasive?
> We have patches in our yard. Remove by pulling?
>
>
>
>
> _______________________________________________
> MAIPC mailing list
> MAIPC at lists.maipc.org
> http://lists.maipc.org/listinfo.cgi/maipc-maipc.org
>
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