The following species are used by butterflies as larval (caterpillar) food or as a source of nectar for adults. A habitat can support butterflies when it contains food sources for both stages.
Alnus incana (rugosa)
Speckled Alder
Betula alleghaniensis
Yellow Birch
Carya cordiformis
Bitternut Hickory
Carya ovata
Shagbark Hickory
Ceanothus americanus
New Jersey Tea
Chamaedaphne calyculata
Leatherleaf
Corylus americana
American Hazelnut
Fraxinus pennsylvanica
Green/Red Ash
Ledum groenlandicum
Labrador tea
Lindera benzoin
Spicebush
Liriodendron tulipifera
Tulip Tree
Malus coronaria
Wild Crabapple
Populus deltoides
Cottonwood
Prunus serotina
Black Cherry
Prunus susquehanae
Sand Cherry
Quercus alba
White Oak
Quercus bicolor
Swamp white oak
Quercus macrocarpon
Burr oak
Quercus rubra
Red Oak
Quercus velutina
Black oak
Ribes americanum
Wild Black Current
Salix bebbiana
Beaked Willow
Salix discolor
Pussy Willow
Salix eriocephala
Woolly Headed Willow
Salix exigua
Sandbar Willow
Salix lucida
Shining Willow
Sambucus canadensis
Elderberry
Sambucus pubens
Red Elderberry
Spirea alba
Meadowsweet
Vaccinium macrocarpom
Cranberry