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Juglans cinerea L.
Butternut S4 CP RC
Juglans nigra L.
Black walnut S4 CP HV RC BT
Beech family
Castanea dentata (Marshall) Borkh.
Fagaceae
American chestnut
Listed as threatened by COSEWIC.
S3 CP
Fagus grandifolia Ehrh.
American beech S5 CP HV
Quercus alba L.
White oak S5 CP HV RC
Quercus macrocarpa Michx.
Bur oak S5 CP
Quercus muehlenbergii Engelm.
Chinquapin oak S4 CP HV RC BT
Quercus rubra L.
Red oak S5 CP HV RC BT
Quercus velutina Lam.
Black oak S4 CP HV RC
Birch family
Alnus glutinosa (L.) Gaertn.
Betulaceae
+N European black alder
No specimens.
SE4 CP
Alnus incana (L.) Moench spp. rugosa (Du Roi) Clausen
Speckled alder S5 CP
Betula alleghaniensis Britton
Yellow birch S5 CP HV
12
Betula papyrifera Marshall
White birch S5 CP HV RC
Including three 1955 collections first identified as B. cordifolia.
Betula pendula Roth
+* European weeping birch SE4 RC
Could be planted.
Carpinus caroliniana Walter ssp. virginiana (Marshall) Furlow
Blue beech or ironwood S5 CP RC
Corylus americana Walter
American hazel S5 CP
Corylus cornuta Marshall ssp. cornuta
Beaked hazel S5 CP
Ostrya virginiana (Miller) K. Koch
Hop hornbeam or ironwood S5 CP HV RC
Four-o-clock family
Mirabilis nyctaginea (Michx.) MacMill.
Nyctaginaceae
+ Heart-leaved umbrella-wort SE4 R
Goosefoot family
Atriplex patula L.
Chenopodiaceae
Spreading atriplex S5 CP R W
[Including all specimens previously identified as A. hastata L. and
A. littoralis L.]
Atriplex prostrata Boucher ex DC.
Spear-leaved orache S5 CP R W
Chenopodium album L. var. album
+ Lamb’s quarters SE5 CP R W
Chenopodium botrys L.
+H Jerusalem-oak SE4 HV W
13