| Aaron's beard |
Hypericum calycinum |
1 |
| Allegheny serviceberry |
Amelanchier laevis |
1 |
| alpine currant |
Ribes alpinum |
3 |
| alternateleaf dogwood |
Cornus alternifolia |
5 |
| American basswood |
Tilia americana |
3 |
| American beech |
Fagus grandifolia |
2 |
| American bittersweet |
Celastrus scandens |
2 |
| American chestnut |
Castanea dentata |
1 |
| American cranberrybush |
Viburnum opulus var. americanum |
2 |
| American elm |
Ulmus americana |
6 |
| American hazelnut |
Corylus americana |
3 |
| American holly |
Ilex opaca |
1 |
| American hornbeam |
Carpinus caroliniana |
2 |
| American plum |
Prunus americana |
2 |
| American sycamore |
Platanus occidentalis |
4 |
| Amur corktree |
Phellodendron amurense |
3 |
| Amur honeysuckle |
Lonicera maackii |
4 |
| Amur maple |
Acer ginnala |
2 |
| Amur privet |
Ligustrum amurense |
1 |
| apple serviceberry |
Amelanchier x grandiflora |
2 |
| apricot |
Prunus armeniaca |
4 |
| bayberry |
Morella pensylvanica |
3 |
| beautybush |
Kolkwitzia amabilis |
4 |
| bigtooth aspen |
Populus grandidentata |
2 |
| black cherry |
Prunus serotina |
5 |
| black chokeberry |
Photinia melanocarpa |
2 |
| black locust |
Robinia pseudoacacia |
5 |
| black oak |
Quercus velutina |
1 |
| black walnut |
Juglans nigra |
1 |
| black willow |
Salix nigra |
1 |
| blackgum |
Nyssa sylvatica |
5 |
| blackhaw viburnum |
Viburnum prunifolium |
5 |
| blue ash |
Fraxinus quadrangulata |
3 |
| blue-mist shrub |
Caryopteris x clandonensis |
3 |
| border privet |
Ligustrum obtusifolium |
1 |
| bottlebrush buckeye |
Aesculus parviflora |
3 |
| bristly locust |
Robinia hispida |
2 |
| bur oak |
Quercus macrocarpa |
5 |
| Burkwood's viburnum |
Viburnum x burkwoodii |
2 |
| bush cinquefoil |
Dasiphora fruticosa |
2 |
| butternut |
Juglans cinerea |
1 |
| Callery pear (Bradford pear) |
Pyrus calleryana |
2 |
| Canadian serviceberry |
Amelanchier canadensis |
3 |
| Carolina silverbell |
Halesia carolina |
3 |
| Catawba rosebay |
Rhododendron catawbiense |
4 |
| cherry birch |
Betula lenta |
5 |
| cherry plum |
Prunus cerasifera |
2 |
| Chinese chestnut |
Castanea mollissima |
2 |
| Chinese elm |
Ulmus parvifolia |
3 |
| chinkapin oak |
Quercus muehlenbergii |
3 |
| coastal sweetpepperbush |
Clethra alnifolia |
1 |
| cockspur hawthorn |
Crataegus crus-galli |
3 |
| common elderberry |
Sambucus nigra ssp. canadensis |
3 |
| common filbert |
Corylus avellana |
2 |
| common hackberry |
Celtis occidentalis |
3 |
| common horse chestnut |
Aesculus hippocastanum |
2 |
| common lilac |
Syringa vulgaris |
2 |
| common ninebark |
Physocarpus opulifolius |
3 |
| common pearlbrush |
Exochorda racemosa |
2 |
| common snowberry |
Symphoricarpos albus var. laevigatus |
1 |
| common St. Johnswort |
Hypericum perforatum |
2 |
| common winterberry |
Ilex verticillata |
3 |
| coralberry |
Symphoricarpos orbiculatus |
2 |
| corkscrew willow |
Salix matsudana |
3 |
| Cornelian cherry dogwood |
Cornus mas |
5 |
| cotoneaster |
Cotoneaster multiflorus |
6 |
| crabapple and apple |
Malus spp. |
2 |
| crack willow |
Salix fragilis |
1 |
| cranberry cotoneaster |
Cotoneaster apiculatus |
4 |
| crapemyrtle |
Lagerstroemia indica |
2 |
| Crimean linden |
Tilia x euchlora |
1 |
| cucumber-tree |
Magnolia acuminata |
2 |
| Dahurian birch |
Betula dahurica |
2 |
| dogwood |
Cornus spp. |
3 |
| doublefile viburnum |
Viburnum plicatum tomentosum |
1 |
| downy hawthorn |
Crataegus mollis |
4 |
| dwarf honeysuckle |
Lonicera xylosteum |
2 |
| Dwarf Korean lilac |
Syringa meyeri |
4 |
| dwarf witchalder |
Fothergilla gardenii |
1 |
| eastern cottonwood |
Populus deltoides ssp. deltoides |
1 |
| eastern redbud |
Cercis canadensis |
6 |
| English elm |
Ulmus procera |
1 |
| English oak |
Quercus robur |
2 |
| European alder |
Alnus glutinosa |
2 |
| European ash |
Fraxinus excelsior |
2 |
| European beech |
Fagus sylvatica |
7 |
| European bird cherry |
Prunus padus |
3 |
| European buckthorn |
Rhamnus cathartica |
5 |
| European cranberrybush |
Viburnum opulus |
1 |
| European cranberrybush |
Viburnum opulus var. opulus |
5 |
| European hornbeam |
Carpinus betulus |
2 |
| European mountain-ash |
Sorbus aucuparia |
3 |
| European privet |
Ligustrum vulgare |
4 |
| European smoketree |
Cotinus coggygria |
2 |
| European spindletree |
Euonymus europaeus |
2 |
| European white birch |
Betula pendula |
4 |
| flowering dogwood |
Cornus florida |
1 |
| flowering plum |
Prunus triloba |
1 |
| flowering quince |
Chaenomeles speciosa |
3 |
| fragrant sumac |
Rhus aromatica |
3 |
| fuzzy pride-of-Rochester |
Deutzia scabra |
1 |
| glossy abelia |
Abelia x grandiflora |
1 |
| goat willow |
Salix caprea |
2 |
| goldenrain tree |
Koelreuteria paniculata |
3 |
| goldflame honeysuckle |
Lonicera x heckrottii |
1 |
| gray dogwood |
Cornus racemosa |
3 |
| green ash |
Fraxinus pennsylvanica |
3 |
| greenstem forsythia |
Forsythia viridissima |
1 |
| hawthorn |
Crataegus spp. |
1 |
| hedge maple |
Acer campestre |
1 |
| holly |
Ilex spp. |
1 |
| honeylocust |
Gleditsia triacanthos |
5 |
| hophornbeam |
Ostrya virginiana |
4 |
| hoptree |
Ptelea trifoliata |
1 |
| Jackman clematis |
Clematis x jackmanii |
1 |
| Japanese barberry |
Berberis thunbergii |
4 |
| Japanese elm |
Ulmus davidiana var. japonica |
1 |
| Japanese flowering cherry |
Prunus serrulata |
2 |
| Japanese flowering crabapple |
Malus floribunda |
4 |
| Japanese honeysuckle |
Lonicera japonica |
2 |
| Japanese maple |
Acer palmatum |
1 |
| Japanese rose |
Kerria japonica |
2 |
| Japanese snowbell |
Styrax japonicus |
2 |
| Japanese spiraea |
Spiraea japonica |
3 |
| Japanese stewartia |
Stewartia pseudocamellia |
1 |
| Japanese tree lilac |
Syringa reticulata |
9 |
| Japanese zelkova |
Zelkova serrata |
5 |
| jetbead |
Rhodotypos scandens |
2 |
| Judd viburnum |
Viburnum x juddii |
1 |
| Kalm's St. Johnswort |
Hypericum kalmianum |
1 |
| katsura tree |
Cercidiphyllum japonicum |
3 |
| Kentucky coffeetree |
Gymnocladus dioicus |
4 |
| Korean barberry |
Berberis koreana |
4 |
| Koreanspice Viburnum |
Viburnum carlesii |
2 |
| Kousa dogwood |
Cornus kousa |
4 |
| laceshrub |
Stephanandra incisa |
1 |
| leatherleaf arrowwood viburnum |
Viburnum rhytidophyllum |
2 |
| Lemoine Deutzia |
Deutzia x lemoinei |
4 |
| littleleaf linden |
Tilia cordata |
4 |
| Loebner's magnolia |
Magnolia x loebneri |
2 |
| Lombardy poplar |
Populus nigra |
1 |
| Manchurian lilac |
Syringa velutina |
4 |
| mountain ash |
Sorbus spp. |
1 |
| Nanking cherry |
Prunus tomentosa |
4 |
| nannyberry |
Viburnum lentago |
2 |
| northern catalpa |
Catalpa speciosa |
3 |
| northern red oak |
Quercus rubra |
6 |
| Norway maple |
Acer platanoides |
3 |
| Ohio buckeye |
Aesculus glabra |
2 |
| old fashioned weigela |
Weigela florida |
3 |
| osage-orange |
Maclura pomifera |
2 |
| panicled hydrangea |
Hydrangea paniculata |
3 |
| paper birch |
Betula papyrifera |
4 |
| paperbark maple |
Acer griseum |
5 |
| Peking cotoneaster |
Cotoneaster acutifolius |
4 |
| Persian lilac |
Syringa x persica |
4 |
| pin oak |
Quercus palustris |
4 |
| prairie crabapple |
Malus ioensis |
2 |
| purpleosier willow |
Salix purpurea |
2 |
| quaking aspen |
Populus tremuloides |
2 |
| red buckeye |
Aesculus pavia |
2 |
| red chokeberry |
Photinia pyrifolia |
1 |
| red maple |
Acer rubrum |
4 |
| red mulberry |
Morus rubra |
1 |
| redosier dogwood |
Cornus sericea |
7 |
| river birch |
Betula nigra |
2 |
| royal star magnolia |
Magnolia stellata |
5 |
| Russian-olive |
Elaeagnus angustifolia |
1 |
| saltcedar |
Tamarix ramosissima |
2 |
| sandbar willow |
Salix interior |
1 |
| Sargent's apple |
Malus sargentii |
1 |
| Saskatoon serviceberry |
Amelanchier alnifolia var. humptulipensis |
2 |
| saucer magnolia |
Magnolia x soulangiana |
6 |
| shagbark hickory |
Carya ovata |
1 |
| shingle oak |
Quercus imbricaria |
4 |
| Siberian elm |
Ulmus pumila |
1 |
| Siberian peashrub |
Caragana arborescens |
3 |
| Siebold's arrowwood |
Viburnum sieboldii |
2 |
| silver linden |
Tilia tomentosa |
1 |
| silver maple |
Acer saccharinum |
2 |
| slender pride of Rochester |
Deutzia gracilis |
1 |
| smooth sumac |
Rhus glabra |
1 |
| smooth winterberry |
Ilex laevigata |
1 |
| Snowmound spiraea |
Spiraea nipponica |
2 |
| sourwood |
Oxydendrum arboreum |
4 |
| southern arrowwood |
Viburnum dentatum |
3 |
| spreading cotoneaster |
Cotoneaster divaricatus |
1 |
| staghorn sumac |
Rhus typhina |
2 |
| stewartia |
Stewartia spp. |
1 |
| sugar maple |
Acer saccharum |
3 |
| swamp white oak |
Quercus bicolor |
2 |
| sweet autumn virginsbower |
Clematis terniflora |
3 |
| sweet breath of spring |
Lonicera fragrantissima |
2 |
| sweet cherry |
Prunus avium |
4 |
| sweet mock orange |
Philadelphus coronarius |
5 |
| sweetbay |
Magnolia virginiana |
3 |
| sweetgum |
Liquidambar styraciflua |
5 |
| Tatarian honeysuckle |
Lonicera tatarica |
6 |
| Thunberg's meadowsweet |
Spiraea thunbergii |
2 |
| tree-of-heaven |
Ailanthus altissima |
5 |
| trumpetcreeper |
Campsis radicans |
3 |
| tuliptree |
Liriodendron spp. |
1 |
| Turkish hazelnut |
Corylus colurna |
2 |
| umbrella magnolia |
Magnolia tripetala |
2 |
| Vanhoutte spiraea |
Spiraea x vanhouttei |
5 |
| vernal witchhazel |
Hamamelis vernalis |
2 |
| vicary privet |
Ligustrum x vicaryi |
1 |
| Virginal mockorange |
Philadelphus x virginalis |
1 |
| Virginia-creeper |
Parthenocissus quinquefolia |
1 |
| Washington hawthorn |
Crataegus phaenopyrum |
4 |
| wayfaringtree |
Viburnum lantana |
6 |
| weigela |
Weigela spp. |
2 |
| white ash |
Fraxinus americana |
5 |
| white eastern redbud |
Cercis canadensis alba |
1 |
| white fringetree |
Chionanthus virginicus |
3 |
| white mulberry |
Morus alba |
1 |
| white oak |
Quercus alba |
5 |
| white poplar |
Populus alba |
4 |
| white willow |
Salix alba |
2 |
| Whitespire |
Betula platyphylla var. japonica |
3 |
| wild hydrangea |
Hydrangea arborescens |
2 |
| winged burning bush |
Euonymus alatus |
3 |
| winter-flowering cherry |
Prunus subhirtella |
3 |
| witch-hazel |
Hamamelis virginiana |
3 |
| wych elm |
Ulmus glabra |
3 |
| yellow-poplar |
Liriodendron tulipifera |
1 |
| Yoshino cherry |
Prunus yedoensis |
3 |
