-
Alnus glutinosa (L.) Gaertner
European black alder
Introduced
-
Alnus rugosa (Du Roi) Spreng.
= Alnus incana ssp. rugosa (Du Roi) Clausen
speckled alder
Native
-
Alnus serrulata (Ait.) Willd.
smooth alder, common alder
Native
-
Betula alleghaniensis Britton
= B. lutea Michx.
yellow birch
Native
-
Betula cordifolia Regel
= Betula payrifera var. cordifolia (Regel) Fern.
heartleaf paper birch, mountain paper birch
Watch-Listed
-
Betula lenta L.
sweet birch, cherry birch, black birch
Native
-
Betula nigra L.
river birch
Watch-Listed
-
Betula papyrifera Marsh.
paper birch
Native
-
Betula papyrifera Marsh. × B. populifolia Marsh.
paper birch × gray birch
Native
-
Betula pendula Roth
silver birch
Introduced
-
Betula pendula × B. populifolia
European silver birch × American gray birch
Introduced
-
Betula populifolia Marsh.
gray birch
Native
-
Betula pubescens Ehrh.
= B. alba L. pro parte
European downy birch
Introduced
-
Betula pumila L.
swamp birch, fen birch
Threatened
-
Betula sp.
exotic birch
Introduced
-
Carpinus caroliniana Walter
ironwood, hornbeam
Native
-
Corylus americana Walt.
American hazelnut
Native
-
Corylus colurna L.
Turkish hazel, filbert
Introduced
-
Corylus cornuta Marsh.
beaked hazelnut
Native
-
Ostrya virginiana (P.Mill.) K.Koch
eastern hophornbeam
Native
