Salicicola |
Alnus glutinosa (L.) Gaertner
European black alder
Introduced
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Alnus incana (L.) Moench ssp. incana
grey alder
Exotic
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Alnus incana ssp. rugosa (Du Roi) R.T.Clausen
= Alnus rugosa
Du Roi
= Alnus rugosa var. americana
(Regel) Fern.
speckled alder
Native
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Alnus incana ssp. tenuifolia (Nutt.) Breitung
= A. tenuifolia
Nutt.
mountain alder, thinleaf alder
Exotic
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Alnus serrulata (Ait.) Willd.
= Alnus serrulata var. subelliptica
Fern.
smooth alder, common alder
Native
|
Alnus viridis ssp. crispa (Aiton) Turrill
= Alnus crispa
(Aiton) Pursh
= Alnus crispa var. mollis
(Fern.) Fern.
mountain alder, green alder
Native
—
Threatened
|