[MAIPC] New invasive/waifs

[frazmo]

Italian arum has been brought up a few times over the last 10 years. In
Arlington definitely it is invading natural areas, and also has become a
freaking yard weed in my own back yard.

A few years ago a NPS contact said it had blanketed a 1 acre wetland area
in Rock Creek Park, DC. It should be taken seriously. Also, it is hard to
kill and I have yet to see anyone report a really effective treatment. And
finally, its phenology is tricky. It leafs out in the cold season and
senesces after it warms up, then sends up a naked flowering spike in summer
that bears bright red "berries". IMO it should be banned. Cheers, Steve
Young

On Wed, Sep 9, 2020, 9:34 AM Meghan Noe Fellows <meginnv at yahoo.com> wrote:

> Hello- we’ve been tracking a few species in the last few years but are
> wondering if they are on anyone else’s radar.
>
> 1) Italian arum (Arum italicum). More easily seen in late winter/early
> spring, it would be great if folks could add their sightings to eddmaps. So
> far we’ve really only seen it within sight of houses, but it seems to be
> spreading
>
> 2) black poplar (Populus nigra). We First noticed it a couple of years ago
> within a disturbed natural area, and have since seen it in two more
> locations. It would be great if folks could put occurrence data of this one
> in eddmaps too.
>
> Thanks!
> Meghan Fellows
>
>
> Sent from my iPhone
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