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
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Alnus viridis ssp. crispa (Aiton) Turrill
= Alnus crispa
(Aiton) Pursh
= Alnus crispa var. mollis
(Fern.) Fern.
mountain alder, green alder
Native
—
Threatened
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Betula alleghaniensis Britton
= Betula alleghaniensis var. macrolepis
(Fern.) Brayshaw
= Betula lutea
Michx.
yellow birch
Native
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Betula cordifolia Regel
= Betula papyrifera var. cordifolia
(Regel) Fern.
heartleaf paper birch, mountain paper birch
Native
—
Watch-Listed
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Betula lenta L.
sweet birch, cherry birch, black birch
Native
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Betula nigra L.
river birch
Native
—
Watch-Listed
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Betula papyrifera Marsh.
paper birch
Native
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Betula papyrifera × B. populifolia
paper birch × gray birch
Native
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Betula pendula Roth
European weeping birch, European silver birch
Introduced
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Betula pendula × B. populifolia
European weeping birch × American gray birch
Introduced
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Betula populifolia Marsh.
gray birch
Native
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Betula pubescens Ehrh. ssp. pubescens
= Betula alba
L. pro parte
= Betula alba var. pubescens
(Ehrh.) Spach
European downy birch
Introduced
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Betula pumila L.
swamp birch, fen birch
Native
—
Threatened
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Betula sp.
unidentified exotic birch
Introduced
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Carpinus betulus L.
European hornbeam
Cultivated
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Carpinus caroliniana ssp. virginiana (Marsh.) Furlow
American hornbeam, ironwood, musclewood, bluebeech
Native
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