Twig Key

So far you have made the following choices...

It could be one of the species in the table below. Let's narrow our choices by looking at the vascular bundle scars within the leaf scars.

1 bundle scar in each leaf scar
3 bundle scars in each leaf scar
5 or more bundle scars in each leaf scar
unknown bundle scars in each leaf scar


Possible Matches:

Family Genus Species common name
Anacardiaceae Cotinus obovatus American smoketree
Anacardiaceae Rhus aromatica fragrant sumac
Aquifoliaceae Ilex decidua deciduous holly
Aquifoliaceae Ilex verticillata winterberry holly
Betulaceae Alnus glutinosa European black alder
Betulaceae Alnus rhombifolia white alder
Betulaceae Alnus rubra red alder
Betulaceae Alnus rugosa speckled alder
Betulaceae Alnus serrulata hazel alder
Betulaceae Alnus sinuata Sitka alder
Betulaceae Betula alleghaniensis yellow birch
Betulaceae Betula lenta sweet birch
Betulaceae Betula nigra river birch
Betulaceae Betula papyrifera paper birch
Betulaceae Betula pendula European weeping birch
Betulaceae Betula populifolia gray birch
Betulaceae Betula uber roundleaf birch
Betulaceae Carpinus caroliniana hornbeam
Betulaceae Corylus americana American hazel
Betulaceae Corylus cornuta beaked hazel
Betulaceae Ostrya virginiana hophornbeam
Burseraceae Bursera simarouba gumbo-limbo
Caesalpiniaceae Cercis canadensis redbud
Caesalpiniaceae Cercis occidentalis western redbud
Cercidiphyllaceae Cercidiphyllum japonicum katsuratree
Clethraceae Clethra alnifolia summersweet clethra
Ebenaceae Diospyros virginiana persimmon
Elaeagnaceae Elaeagnus angustifolia Russian-olive
Elaeagnaceae Elaeagnus umbellata autumn-olive
Ericaceae Leucothoe racemosa swamp sweetbells
Ericaceae Rhododendron calendulaceum flame azalea
Ericaceae Rhododendron canescens swamp azalea
Ericaceae Rhododendron nudiflorum pink azalea
Ericaceae Rhododendron occidentale western azalea
Ericaceae Vaccinium arboreum sparkleberry
Ericaceae Vaccinium membranaceum big huckleberry
Ericaceae Vaccinium parvifolium red huckleberry
Ericaceae Vaccinium vacillans lowbush blueberry
Euphorbiaceae Sapium sebiferum Chinese tallow tree
Fabaceae Cytisus scoparius Scotch broom
Fabaceae Laburnum x wateri goldenchain tree
Fabaceae Sophora japonica Japanese pagoda tree
Fagaceae Castanea dentata American chestnut
Fagaceae Castanea mollissima Chinese chestnut
Fagaceae Castanea pumila Alleghany chinkapin
Fagaceae Fagus grandifolia American beech
Fagaceae Fagus sylvatica European beech
Fagaceae Quercus acutissima sawtooth oak
Ginkgoaceae Ginkgo biloba ginkgo
Grossulariaceae Itea virginica sweetspire
Grossulariaceae Ribes sanguineum red-flowering currant
Hamamelidaceae Liquidambar styraciflua sweetgum
Hippocastanaceae Aesculus californica California buckeye
Juglandaceae Carya aquatica water hickory
Juglandaceae Carya glabra pignut hickory
Juglandaceae Carya laciniosa shellbark hickory
Juglandaceae Carya ovata shagbark hickory
Juglandaceae Carya pallida sand hickory
Juglandaceae Carya tomentosa mockernut hickory
Lauraceae Lindera benzoin spicebush
Lauraceae Sassafras albidum sassafras
Magnoliaceae Liriodendron tulipifera yellow-poplar
Moraceae Morus rubra red mulberry
Myricaceae Myrica gale sweetgale
Nyssaceae Nyssa aquatica water tupelo
Nyssaceae Nyssa biflora swamp tupelo
Nyssaceae Nyssa sylvatica blackgum
Pinaceae Larix decidua European larch
Pinaceae Larix kaempferi Japanese larch
Pinaceae Larix laricina tamarack
Pinaceae Larix occidentalis western larch
Rhamnaceae Ceanothus americanus New Jersey tea
Rhamnaceae Ceanothus integerrimus deerbrush
Rhamnaceae Ceanothus sanguineus redstem ceanothus
Rosaceae Amelanchier alnifolia Pacific serviceberry
Rosaceae Amelanchier arborea serviceberry
Rosaceae Aronia arbutifolia chokeberry
Rosaceae Holodiscus discolor ocean spray
Rosaceae Malus spp. apple
Rosaceae Oemleria cerasiformis Indian-plum
Rosaceae Physocarpus capitatus ninebark
Rosaceae Prunus angustifolia Chickasaw plum
Rosaceae Prunus avium sweet cherry
Rosaceae Prunus cerasifera purple leaf plum
Rosaceae Prunus emarginata bitter cherry
Rosaceae Prunus pennsylvanica fire cherry
Rosaceae Prunus persica peach
Rosaceae Prunus serotina black cherry
Rosaceae Prunus serrulata Kwanzan cherry
Rosaceae Prunus subcordata Klamath plum
Rosaceae Prunus subhirtella Higan cherry
Rosaceae Prunus virginiana choke cherry
Rosaceae Prunus x yedoensis Yoshino cherry
Rosaceae Purshia tridentata bitterbrush
Rosaceae Pyrus calleryana callery pear
Rosaceae Pyrus communis common pear
Rosaceae Sorbus americana American mountain-ash
Rosaceae Sorbus aucuparia European mountain-ash
Rosaceae Sorbus sitchensis Sitka mountain-ash
Rosaceae Spiraea alba narrowleaf spirea
Rosaceae Spiraea latifolia broadleaf spirea
Salicaceae Populus alba European white poplar
Salicaceae Populus balsamifera balsam poplar
Salicaceae Populus deltoides cottonwood
Salicaceae Populus grandidentata bigtooth aspen
Salicaceae Populus heterophylla swamp cottonwood
Salicaceae Populus tremuloides quaking aspen
Salicaceae Populus trichocarpa black cottonwood
Sapindaceae Koelreuteria paniculata goldenraintree
Styracaceae Halesia carolina silverbell
Styracaceae Styrax japonicus Japanese snowbell
Symplocaceae Symplocos tinctoria common sweetleaf
Theaceae Franklinia alatamaha Franklin tree
Theaceae Stewartia spp. stewartia
Tiliaceae Tilia americana American basswood
Tiliaceae Tilia cordata littleleaf linden
Tiliaceae Tilia tomentosa silver linden
Ulmaceae Celtis laevigata sugarberry
Ulmaceae Celtis occidentalis hackberry
Ulmaceae Planera aquatica water elm
Ulmaceae Ulmus alata winged elm
Ulmaceae Ulmus americana American elm
Ulmaceae Ulmus parvifolia Chinese elm
Ulmaceae Ulmus pumila Siberian elm
Ulmaceae Ulmus rubra slippery elm
Ulmaceae Ulmus thomasii rock elm
Ulmaceae Zelkova serrata Japanese zelkova

 
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