** = Adventive species (not native to Delaware, but native to N. America and now growing wild in Delaware)* = Non-native species (not native to Delaware)

Arboretum Herbarium specimens
Abelia_x_grandiflora

*Abelia × grandiflora GLOSSY ABELIA

Abies_balsamea_phanerolepis

*Abies balsamea var. phanerolepis CANAAN FIR

Abies_concolor

*Abies concolor COLORADO FIR

Acer_negundo

Acer negundo BOX-ELDER

Acer_palmatum_Atropurpureum

*Acer palmatum ‘Atropurpureum’ JAPANESE MAPLE

Acer_platanoides

*Acer platanoides NORWAY MAPLE

Acer_rubrum

Acer rubrum RED MAPLE

Acer_saccharinum

Acer saccharinum SILVER MAPLE

Acer_saccharum

Acer saccharum SUGAR MAPLE

Aesculus_parviflora

*Aesculus parviflora BOTTLEBRUSH BUCKEYE

Ailanthus_altissima

*Ailanthus altissima TREE-OF-HEAVEN

Amelanchier_sp

Amelanchier sp. SERVICEBERRY

Araucaria_araucana

*Araucaria araucana MONKEY PUZZLE

Aronia_arbutifolia

Aronia arbutifolia RED CHOKEBERRY

Aronia_arbutifolia

Aronia arbutifolia RED CHOKEBERRY

Aronia_melanocarpa

Aronia melanocarpa BLACK CHOKEBERRY

Asimina_triloba

Asimina triloba PAWPAW

Asimina_triloba

Asimina triloba PAWPAW

Aucuba_japonica_Variegata

*Aucuba japonica ‘Variegata’ GOLD-DUST PLANT

Berberis_thunbergii

*Berberis thunbergii JAPANESE BARBERRY

Betula_lenta

Betula lenta SWEET BIRCH

Betula_nigra

Betula nigra RIVER BIRCH

Carpinus_betulus

*Carpinus betulus EUROPEAN HORNBEAM

Carpinus_caroliniana

Carpinus caroliniana IRONWOOD

Carya_cordiformis

Carya cordiformis BITTERNUT HICKORY

Carya_ovata

Carya ovata SHAGBARK HICKORY

Castanea_dentata

Castanea dentata AMERICAN CHESTNUT

Castanea_pumila

Castanea pumila CHINQUAPIN

Catalpa_speciosa

*Catalpa speciosa NORTHERN CATALPA

Cedrus_atlantica_Glauca

*Cedrus atlantica ‘Glauca’ BLUE ATLAS CEDAR

Cedrus_deodara

*Cedrus deodara DEODAR CEDAR

Celtis_occidentalis

Celtis occidentalis HACKBERRY

Cephalanthus_occidentalis

Cephalanthus occidentalis BUTTONBUSH

Cercis_canadensis

Cercis canadensis REDBUD

Cercis_canadensis

Cercis canadensis REDBUD

Cercis_reniformis_Oklahoma

*Cercis reniformis ‘Oklahoma’ OKLAHOMA REDBUD

Chaenomeles_speciosa

*Chaenomeles speciosa JAPANESE FLOWERING-QUINCE

Chamaecyparis_pisifera_Filifera

*Chamaecyparis pisifera ‘Filifera’ SAWARA FALSE CYPRESS threadleaf

Chamaecyparis_pisifera_Filifera_Aurea

*Chamaecyparis pisifera ‘Filifera Aurea’ SAWARA FALSE CYPRESS golden threadleaf

Chionanthus_virginicus

Chionanthus virginicus FRINGE-TREE

Cladrastis_kentukea

*Cladrastis kentukea YELLOW-WOOD

Cladrastis_kentukea

*Cladrastis kentukea YELLOW-WOOD

Clethra_alnifolia

Clethra alnifolia SWEET PEPPER-BUSH

Cornus_florida

Cornus florida FLOWERING DOGWOOD

Cornus_florida_x_kousa

*Cornus florida ×kousa RUTGERS HYBRID DOGWOOD

Cornus_kousa

*Cornus kousa JAPANESE DOGWOOD

Cornus_mas

*Cornus mas CORNELIAN-CHERRY

Cornus_sericea

Cornus sericea RED-OSIER DOGWOOD

Corylus_americana

Corylus americana AMERICAN HAZELNUT

Crataegus_phaenopyrum

**Crataegus phaenopyrum WASHINGTON HAWTHORN

Crataegus_phaenopyrum_from_another_unlabeled_campus_tree

**Crataegus phaenopyrum WASHINGTON HAWTHORN from another unlabeled campus tree

Cryptomeria_japonica

*Cryptomeria japonica JAPANESE CRYPTOMERIA

Cupressocyparis_leylandii

*×Cupressocyparis leylandii LEYLAND-CYPRESS

Diospyros_kaki

*Diospyros kaki JAPANESE PERSIMMON

Euonymus_alata

*Euonymus alata BURNING BUSH, WINGED EUONYMUS

Euonymus_fortunei

*Euonymus fortunei WINTER CREEPER

Euonymus_japonicus

*Euonymus japonicus JAPANESE SPINDLETREE

Fagus_grandifolia

Fagus grandifolia AMERICAN BEECH

Forsythia_x_intermedia

*Forsythia ×intermedia SHOWY FORSYTHIA

Fothergilla_gardenii

*Fothergilla gardenii DWARF WITCHALDER

Franklinia_alatamaha

*Franklinia alatamaha FRANKLINIA

Franklinia_alatamaha_from_another_unlabeled_campus_tree

*Franklinia alatamaha FRANKLINIA from another unlabeled campus tree

Fraxinus_americana

Fraxinus americana WHITE ASH

Fraxinus_pennsylvanica

Fraxinus pennsylvanica GREEN ASH

Ginkgo_biloba

*Ginkgo biloba GINKGO

Gleditsia_triacanthos_inermis

**Gleditsia triacanthos f. inermis THORNLESS HONEY-LOCUST

Gymnocladus_dioicus

*Gymnocladus dioicus KENTUCKY COFFEETREE

Halesia_diptera

*Halesia diptera TWO-WING SILVERBELL

Hamamelis_vernalis

*Hamamelis vernalis OZARK WITCH-HAZEL

Hamamelis_virginiana

Hamamelis virginiana WITCH-HAZEL

Hibiscus_syriacus

*Hibiscus syriacus ROSE-OF-SHARON

Hydrangea_paniculata

*Hydrangea paniculata PANICLED HYDRANGEA

Hydrangea_paniculata

*Hydrangea paniculata PANICLED HYDRANGEA

Hydrangea_quercifolia

*Hydrangea quercifolia OAKLEAF HYDRANGEA

Ilex_Nellie_R_Stevens

*Ilex ‘Nellie R. Stevens’ NELLIE R. STEVENS HOLLY

Ilex_cornuta_Rotunda

*Ilex cornuta ‘Rotunda’ DWARF CHINESE HOLLY

Ilex_glabra

Ilex glabra INKBERRY

Ilex_opaca

Ilex opaca AMERICAN HOLLY

Ilex_verticillata

Ilex verticillata WINTERBERRY

Ilex_x_attenuata_Fosteri

*Ilex ×attenuata ‘Fosteri’ FOSTER’S HOLLY

Ilex_x_merserveae

*Ilex ×meserveae BLUE HOLLY

Itea_virginica

Itea virginica VIRGINIA-WILLOW

Juglans_cinerea

Juglans cinerea BUTTERNUT

Juglans_nigra

Juglans nigra BLACK WALNUT

Juglans_regia

*Juglans regia ENGLISH WALNUT

Juniperus_chinensis_Kaizuka

*Juniperus chinensis ‘Kaizuka’ HOLLYWOOD JUNIPER

Juniperus_communis_Hibernica

*Juniperus communis ‘Hibernica’ IRISH JUNIPER

Juniperus_virginiana

Juniperus virginiana EASTERN RED-CEDAR

Kalmia_latifolia

Kalmia latifolia MOUNTAIN-LAUREL

Koelreuteria_paniculata

*Koelreuteria paniculata GOLDEN-RAIN TREE

Lagerstroemia_sp

*Lagerstroemia sp. CRAPE-MYRTLE

Lagerstroemia_sp_from_another_unlabeled_campus_tree

*Lagerstroemia sp. CRAPE-MYRTLE from another unlabeled campus tree

Leucothoe_axillaris

**Leucothoe axillaris COAST LEUCOTHOE

Ligustrum_japonicum

*Ligustrum japonicum JAPANESE PRIVET

Lindera_benzoin

Lindera benzoin SPICEBUSH

Liquidambar_styraciflua

Liquidambar styraciflua SWEET-GUM

Liriodendron_tulipifera

Liriodendron tulipifera TULIP-TREE

Magnolia_grandiflora

*Magnolia grandiflora SOUTHERN MAGNOLIA

Magnolia_stellata

*Magnolia stellata STAR MAGNOLIA

Magnolia_tripetala

**Magnolia tripetala UMBRELLA MAGNOLIA

Magnolia_virginiana

Magnolia virginiana SWEET BAY MAGNOLIA

Magnolia_virginiana

Magnolia virginiana SWEET BAY MAGNOLIA

Magnolia_x_soulangeana

*Magnolia ×soulangeana SAUCER MAGNOLIA

Malus_coronaria

Malus coronaria AMERICAN CRABAPPLE

Malus_hybrid

*Malus hybrid CRABAPPLE

Malus_hybrid_from_another_unlabeled_campus_tree

*Malus hybrid CRABAPPLE from another unlabeled campus tree

Metasequoia_glyptostroboides

*Metasequoia glyptostroboides DAWN-REDWOOD

Morella_pensylvanica

Morella pensylvanica NORTHERN BAYBERRY

Morus_alba

*Morus alba WHITE MULBERRY

Morus_rubra

Morus rubra RED MULBERRY

Nandina_domestica

*Nandina domestica HEAVENLY BAMBOO

Nyssa_sylvatica

Nyssa sylvatica SOUR GUM

Nyssa_sylvatica_from_another_unlabeled_campus_tree

Nyssa sylvatica SOUR GUM from another unlabeled campus tree

Paulownia_tomentosa

*Paulownia tomentosa EMPRESS-TREE

Phoradendron_serotinum

Phoradendron serotinum MISTLETOE

Picea_abies

*Picea abies NORWAY SPRUCE

Picea_omorika

*Picea omorika SERBIAN SPRUCE

Picea_pungens_Glauca

*Picea pungens ‘Glauca’ COLORADO BLUE SPRUCE

Pinus_monophylla

*Pinus monophylla SINGLE-LEAF PINYON PINE

Pinus_mugo

*Pinus mugo MUGO PINE

Pinus_nigra

*Pinus nigra BLACK PINE, AUSTRIAN PINE

Pinus_strobus

**Pinus strobus WHITE PINE

Pinus_sylvestris

*Pinus sylvestris SCOTS PINE

Pinus_sylvestris

*Pinus sylvestris SCOTS PINE

Pinus_taeda

Pinus taeda LOBLOLLY PINE

Pinus_thunbergii

*Pinus thunbergii JAPANESE BLACK PINE

Pinus_virginiana

Pinus virginiana VIRGINIA PINE

Platanus_occidentalis

Platanus occidentalis AMERICAN SYCAMORE

Platanus_x_acerifolia

*Platanus ×acerifolia LONDON PLANE

Platycladus_orientalis

*Platycladus orientalis ORIENTAL ARBORVITAE

Poncirus_trifoliata

*Poncirus trifoliata TRIFOLIATE-ORANGE

Populus_tremuloides

**Populus tremuloides QUAKING ASPEN

Prunus_americana

Prunus americana AMERICAN PLUM

Prunus_cerasifera_Atropurpurea

*Prunus cerasifera ‘Atropurpurea’ PURPLE-LEAF PLUM

Prunus_laurocerasus

*Prunus laurocerasus CHERRY-LAUREL

Prunus_maritima

Prunus maritima BEACH PLUM

Prunus_maritima

Prunus maritima BEACH PLUM

Prunus_serotina

Prunus serotina BLACK CHERRY

Prunus_serrulata_Kwanzan

*Prunus serrulata ‘Kwanzan’ JAPANESE FLOWERING CHERRY

Prunus_sp

*Prunus sp. CHERRY

Pseudotsuga_menziesii

*Pseudotsuga menziesii DOUGLAS-FIR

Pyrus_calleryana_Bradford

*Pyrus calleryana ‘Bradford’ BRADFORD PEAR

Pyrus_calleryana_Redspire

*Pyrus calleryana ‘Redspire’ REDSPIRE PEAR

Pyrus_communis

*Pyrus communis PEAR

Quercus_acutissima

*Quercus acutissima SAWTOOTH OAK

Quercus_alba

Quercus alba WHITE OAK

Quercus_bicolor

Quercus bicolor SWAMP WHITE OAK

Quercus_coccinea

Quercus coccinea SCARLET OAK

Quercus_falcata

Quercus falcata SOUTHERN RED OAK

Quercus_ilicifolia

Quercus ilicifolia SCRUB OAK

Quercus_imbricaria

**Quercus imbricaria SHINGLE OAK

Quercus_macrocarpa

**Quercus macrocarpa BUR OAK

Quercus_marilandica

Quercus marilandica BLACKJACK OAK

Quercus_palustris

Quercus palustris PIN OAK

Quercus_phellos

Quercus phellos WILLOW OAK

Quercus_prinus

Quercus prinus CHESTNUT OAK

Quercus_robur

*Quercus robur ENGLISH OAK

Quercus_rubra

Quercus rubra NORTHERN RED OAK

Rhododendron_sp

*Rhododendron sp. AZALEA

Rosa_sp

*Rosa sp. ROSE

Salix_babylonica

*Salix babylonica WEEPING WILLOW

Salix_nigra

Salix nigra BLACK WILLOW

Sapindus_saponaria

*Sapindus saponaria SOAPBERRY

Sassafras_albidum

Sassafras albidum SASSAFRAS

Sciadopitys_verticillata

*Sciadopitys verticillata UMBRELLA-PINE

Sorbus_alnifolia

*Sorbus alnifolia KOREAN MOUNTAIN-ASH

Spiraea_sp

*Spiraea sp. SPIREA

Spiraea_x_bumalda

*Spiraea ×bumalda JAPANESE SPIREA

Stewartia_pseudocamellia

*Stewartia pseudocamellia JAPANESE STEWARTIA

Styphnolobium_japonicum

*Styphnolobium japonicum JAPANESE PAGODA TREE

Styrax_japonicus

*Styrax japonicus JAPANESE SNOWBELL

Syringa_reticulata

*Syringa reticulata JAPANESE TREE LILAC

Syringa_vulgaris

*Syringa vulgaris COMMON LILAC

Syringa_vulgaris

*Syringa vulgaris COMMON LILAC

Taxodium_distichum

Taxodium distichum BALD-CYPRESS

Taxus_sp

*Taxus sp. YEW

Tetradium_daniellii

*Tetradium daniellii EVODIA, BEE-BEE TREE

Thuja_occidentalis

*Thuja occidentalis AMERICAN ARBORVITAE

Thuja_occidentalis_Rheingold

*Thuja occidentalis ‘Rheingold’ RHEINGOLD ARBORVITAE

Tilia_americana

Tilia americana AMERICAN LINDEN, BASSWOOD

Tilia_cordata

*Tilia cordata LITTLELEAF LINDEN

Tilia_x_europaea

*Tilia ×europaea EUROPEAN LINDEN

Tsuga_canadensis

Tsuga canadensis CANADIAN HEMLOCK

Ulmus_americana

Ulmus americana AMERICAN ELM

Ulmus_rubra

Ulmus rubra SLIPPERY ELM

Ulmus_x_hollandica

*Ulmus ×hollandica HOLLAND ELM

Viburnum_dentatum

Viburnum dentatum ARROWWOOD

Viburnum_dentatum_from_another_unlabeled_campus_tree

Viburnum dentatum ARROWWOOD from another unlabeled campus tree

Viburnum_prunifolium

Viburnum prunifolium BLACKHAW

Viburnum_rhytidophyllum

*Viburnum rhytidophyllum LEATHERLEAF VIBURNUM

Weigela_praecox

*Weigela praecox WEIGELA

Weigela_praecox

*Weigela praecox WEIGELA

Zelkova_serrata

*Zelkova serrata JAPANESE ZELKOVA