Tree twigs

paper birch - Betula papyrifera Betulaceae

American beech - Fagus grandifolia Fagaceae

black walnut - Juglans nigra Juglandaceae

butternut - Juglans cinerea Juglandaceae

yellow birch - Betula alleghaniensis Betulaceae

American chestnut - Castanea dentata Fagaceae

tulip-poplar - Liriodendron tulipifera Magnoliaceae

horsechestnut - Aesculus hippocastanum Sapindaceae

sugar maple - Acer saccharum Sapindaceae

red maple - Acer rubrum Sapindaceae

striped maple - Acer pensylvanicum Sapindaceae

common buckthorn - Rhamnus cathartica Rhamnaceae

quaking aspen - Populus tremuloides Salicaceae

Asiatic bittersweet - Celastrus orbiculatus Celastraceae

honeysuckle - Lonicera spp. Caprifoliaceae

glossy buckthorn - Frangula alnus Rhamnaceae

pin cherry - Prunus pensylvanica Rosaceae

black cherry - Prunus serotina Rosaceae

choke cherry - Prunus virginiana Rosaceae

maple-leaf viburnum - Viburnum acerifolium Adoxaceae

witch-hazel - Hamamelis virginiana Hamamelidaceae

beaked hazelnut - Corylus cornuta Betulaceae

hobblebush - Viburnum lantanoides Adoxaceae

barberry - Berberis spp. Berberidaceae

bigtooth aspen - Populus grandidentata Salicaceae

wild grape - Vitis spp. Vitaceae

boxelder - Acer negundo Sapindaceae

bitternut hickory - Carya cordiformis Juglandaceae

musclewood - Carpinus caroliniana Betulaceae

speckled alder - Alnus incana Betulaceae

eastern hackberry - Celtis occidentalis Cannabaceae

ironwood - Ostrya virginiana Betulaceae

American basswood - Tilia americana Malvaceae

elderberry - Sambucus spp. Adoxaceae

green ash - Fraxinus pennsylvanica Oleaceae

eastern cottonwood - Populus deltoides Salicaceae

black willow - Salix nigra Salicaceae

white ash - Fraxinus americana Oleaceae

white oak - Quercus alba Fagaceae

northern red oak - Quercus rubra Fagaceae

black oak - Quercus velutina Fagaceae

silver maple - Acer saccharinum Sapindaceae

American sycamore - Platanus occidentalis Platanaceae

black locust - Robinia pseudoacacia Fabaceae

dogwood - Swida spp. Cornaceae

American elm - Ulmus americana Ulmaceae

slippery elm - Ulmus rubra Ulmaceae

Norway maple - Acer platanoides Sapindaceae

Virginia creeper - Parthenocissus quinquefolia Vitaceae

staghorn sumac - Rhus typhina Anacardiaceae

black birch - Betula lenta Betulaceae

common apple - Malus sylvestris Rosaceae

Lombardy poplar - Populus nigra ‘italica’ Salicaceae

serviceberry - Amelanchier arborea Rosaceae

hawthorn - Crataegus spp. Rosaceae

pin oak - Quercus palustris Fagaceae

thornless honeylocust - Gleditsia triacanthos ‘inermis’ Fabaceae

river birch - Betula nigra Betulaceae

gingko - Gingko biloba Gingkoaceae

swamp white oak - Quercus bicolor Fagaceae

mountain maple - Acer spicatum Sapindaceae

mountain paper birch - Betula cordifolia Betulaceae

lowbush blueberry - Vaccinium angustifolium Ericaceae

American mountain-ash - Sorbus americana Rosaceae

nannyberry - Viburnum lentago Adoxaceae

gooseberry - Ribes spp. Grossulariaceae

bur oak - Quercus macrocarpa Fagaceae

prickly-ash - Zanthoxylum americanum Rutaceae

black ash - Fraxinus nigra Oleaceae

alternate-leaf dogwood - Swida alternifolia Cornaceae

shagbark hickory - Carya ovata Juglandaceae

winterberry - Ilex verticillata Aquifoliaceae

common buttonbush - Cephalanthus occidentalis Rubiaceae

tamarack - Larix laricina Pinaceae

sweet gale - Myrica gale Myricaceae

black-gum - Nyssa sylvatica Cornaceae

highbush blueberry - Vaccinium corymbosum Ericaceae

Evergreen needles, 2 1/2 to 5 inches long, with three twisted needles per fascicle, yellow-green to green.

pitch pine - Pinus rigida Pinaceae

black spruce - Picea mariana Pinaceae

little-leaf linden - Tilia cordata Malvaceae

Devil’s walking stick - Aralia spinosa Araliaceae

dawn-redwood - Metasequoia glyptostroboides Cupressaceae

Callery pear - Pyrus calleryana Rosaceae

common lilac - Syringa vulgaris Oleaceae

northern catalpa - Catalpa speciosa Bignoniaceae