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Loraine Kohorn <[log in to unmask]>
Tue, 3 Apr 2007 12:49:21 -0400
text/plain (62 lines)
Hi Matt:

I just noticed that the Maine DEP, Bureau of Land and Water Quality 
has online a publication "

The Buffer Handbook Plant List

",  last revised in 2001.  This list includes European alder (Alnus 
glutinosa) as something explicitly recommended to plant in buffer 
zones.    From Alice's comment about establishment in watersheds in 
VT and NH, we'd certainly be safe in recommending  to the DEP that 
this should be taken off the list.

Thanks for bringing this up.


At 01:46 PM 3/30/2007, you wrote:
>Is anyone familiar with Alnus glutinosa (European alder)?  Come to find
>out, this plant is getting planted more and more on wetland mitigation
>sites in Maine.  The plants are commonly mis-labeled as Alnus rugosa.
>Whether it's intentional or not, I don't know.  There is documented
>evidence that this species can become aggressive and escape cultivation.
>However, I'm not aware of any instances of naturalization in Maine yet.
>A notched/rounded leaf apex and resinous texture to the leaves help to
>distinguish it from A. incana.  Those of us involved in wetland
>mitigation planning and monitoring need to be especially aware of this
>species getting thrown into the mix and to also keep our eyes open for
>naturalized populations.  The DEP and Army Corps are aware of this and
>have, in some instances, required the removal of this species from
>mitigation sites.  I've since learned that you can't believe any label
>on nursery stock or seed mixtures. This could be a good topic for
>discussion tomorrow at JBS.
>See folks on Saturday.
>Matt Arsenault
>Woodlot Alternatives, Inc.
>30 Park Dr.
>Topsham, ME 04086
>(207) 729-1199
>(207) 798-2135 (cell)
>(207) 729-2715 (fax)