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Abies balsamea
Abies balsamea 'Tyler Blue'
Abies balsamea 'var. phanerolepis'
Abies concolor
Abies concolor 'Candicans'
Abies fraseri
Abies koreana
Abies koreana 'Aurea'
Acer ginnala
Acer ginnala 'Flame'
Acer miyabei 'Morton'
Acer palmatum
Acer platanoides
Acer platanoides 'Crimson King'
Acer platanoides 'Crimson Sentry'
Acer platanoides 'Emerald Lustre'
Acer platanoides 'Princeton Gold'
Acer platanoides 'Royal Red'
Acer platanoides 'Variegatum'
Acer pseudosieboldianum
Acer rubrum
Acer rubrum 'Brandywine'
Acer rubrum 'JFS-KW78'
Acer rubrum 'Magnificent Magenta'
Acer rubrum 'var. rubrum'
Acer saccharum 'Bailsta'
Acer saccharum 'Barrett Cole'
Acer saccharum 'Green Mountain'
Acer x freemanii 'Armstrong'
Acer x freemanii 'Armstrong Gold'
Acer x freemanii 'Firefall'
Acer x freemanii 'Jeffersred'
Acer x freemanii 'Sienna'
Betula 'Royal Frost'
Betula nigra
Betula nigra '(clump)'
Betula nigra 'Heritage'
Betula nigra 'Heritage (clump)'
Betula nigra 'Shiloh Splash'
Betula nigra 'Splish Splash'
Betula papyrifera 'Varen'
Betula platyphylla 'Fargo'
Betula platyphylla 'Jefpark'
Betula populifolia 'Whitespire'
Carpinus caroliniana
Carpinus caroliniana 'J.N. Select A'
Carpinus caroliniana 'J.N. Upright'
Carpinus caroliniana 'Uxbridge'
Catalpa speciosa
Cercis canadensis
Ginkgo biloba
Ginkgo biloba 'Autumn Gold'
Ginkgo biloba 'Goldspire'
Ginkgo biloba 'Magyar'
Ginkgo biloba 'Princeton Sentry'
Ginkgo biloba 'The President'
Gleditsia triacanthos 'Draves'
Gleditsia triacanthos 'Harve'
Gleditsia triacanthos 'Impcole'
Gleditsia triacanthos 'Shademaster'
Gleditsia triacanthos 'Skycole'
Gleditsia triacanthos 'Suncole'
Gymnocladus dioicus
Gymnocladus dioicus 'Espresso-JFS'
Hydrangea paniculata 'Bulk'
Hydrangea paniculata 'Limelight (tree form)'
Hydrangea paniculata 'Pink Diamond (tree form)'
Juglans nigra
Juniperus virginiana
Larix laricina
Magnolia 'Butterflies'
Magnolia 'Elizabeth'
Magnolia x loebneri 'Leonard Messel'
Magnolia x loebneri 'Merrill'
Magnolia x loebneri 'Ruth'
Malus 'Dolgo'
Malus 'Donald Wyman'
Malus 'DurLeo'
Malus 'Emerald Spire'
Malus 'Fireside'
Malus 'Jeflite'
Malus 'JFS KW213MX'
Malus 'JFS-KW207'
Malus 'JFS-KW5'
Malus 'Louisa'
Malus 'Perfect Purple'
Malus 'Pink Spires'
Malus 'Prairie Rose'
Malus 'Prairifire'
Malus 'Red Baron'
Malus 'Red Jewel'
Malus 'Red Splendor'
Malus 'Rejzam'
Malus 'Shotizam'
Malus 'Snowdrift'
Malus 'Spring Snow'
Malus 'Velvet Pillar'
Picea abies
Picea abies 'Cupressina'
Picea abies 'Noel'
Picea abies 'Pendula'
Picea glauca
Picea glauca 'Pendula'
Picea glauca var. densata
Picea omorika
Picea omorika 'Bruns'
Picea omorika 'Pendula'
Picea omorika 'Pendula Bruns'
Picea omorika 'Silberblue'
Picea pungens
Picea pungens 'Baby Blue'
Picea pungens 'Blue Totem'
Picea pungens 'Bonny Blue'
Picea pungens 'Fat Albert'
Picea pungens 'Hoopsii'
Picea pungens 'Iseli Fastigiata'
Picea pungens 'Kosteri'
Picea pungens 'Pendula'
Picea pungens 'The Blues'
Picea pungens 'Thompsen Blue'
Pinus banksiana
Pinus cembra 'Algonquin Pillar'
Pinus cembra 'Herman'
Pinus cembra 'Stricta'
Pinus mugo
Pinus nigra
Pinus parviflora 'Glauca'
Pinus parviflora 'Tempelhof'
Pinus ponderosa
Pinus resinosa
Pinus strobus
Pinus strobus 'Fastigiata'
Pinus strobus 'Louie'
Pinus strobus 'Stowe Pillar'
Pinus sylvestris
Pinus sylvestris 'French Blue'
Prunus 'Alderman'
Prunus 'Bali'
Prunus 'Lydecker'
Prunus 'Montmorency'
Prunus 'Moongold'
Prunus 'Mount Royal'
Prunus 'Sungold'
Prunus 'Superior'
Prunus 'Toka'
Pyrus 'Parker'
Pyrus 'Patten'
Pyrus 'Summercrisp'
Pyrus communis 'Luscious'
Quercus 'JFS-KW1QX'
Quercus alba
Quercus bicolor
Quercus bicolor 'Bonnie and Mike'
Quercus bicolor 'JFS-KW12'
Quercus ellipsoidalis
Quercus ellipsoidalis 'Bailskies'
Quercus macrocarpa
Quercus macrocarpa 'JFS-KW3'
Quercus rubra
Quercus x macdanielii 'Clemons'
Quercus x warei 'Nadler'
Salix alba
Salix alba 'Niobe'
Sorbus decora
Syringa reticulata
Syringa reticulata 'Bailnce'
Syringa reticulata 'Ivory Silk'
Syringa reticulata 'Ivory Silk (tree form)'
Taxus cuspidata
Thuja occidentalis
Thuja occidentalis 'American Pillar'
Thuja occidentalis 'Nigra'
Thuja occidentalis 'Pyramidalis'
Tilia americana 'American Sentry'
Tilia americana 'Boulevard'
Tilia americana 'Redmond'
Tilia americana 'Sentry'
Tilia cordata 'Greenspire'
Tsuga canadensis
Ulmus 'Cathedral'
Ulmus 'Morton'
Ulmus 'New Horizon'
Ulmus americana
Ulmus americana 'Jefferson'
Ulmus americana 'Lewis & Clark'
Ulmus americana 'New Harmony'
Ulmus americana 'Princeton'
Ulmus americana 'Valley Forge'
Ulmus davidiana 'Discovery'
Viburnum lentago (tree form)