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Patterson Arboretum Accession List 2018

Location Year PlanScientific Name Common Name Nativity Family 1-0 2008 Cephalanthus occidentalis buttonbush E N Am Rubiaceae 1-1 1974 Parthenocissus inserta thicket creeper C & E N Am Vitaceae 1-2 2017 Aristolochia macrophylla Dutchman's pipe E N Am Aristolochiaceae 1-3 2017 Lonicera ciliosa orange honeysuckle W N Am Caprifoliaceae 1-4 2013 Clematis virginiana virgin's bower E N Am Ranunculaceae 1-5 1966 Lonicera x brownii 'Dropmore Scarlet Trumpet' Dropmore scarlet trumpet honeysuckle cultivated origin Caprifoliaceae 1-6 1970 Clematis 'Prairie Traveler's Joy' Prairie Traveler's Joy clematis cultivated origin Ranunculaceae 1-7 1966 Vitis riparia riverbank grape C & E N Am Vitaceae 1-8 1970 Clematis 'Rosy O'Grady' Rosy O'Grady clematis cultivated origin Ranunculaceae 1-9 2008 Clematis alpina alpine clematis Eu Ranunculaceae 1-10 2007 Menispermum canadense Canada moonseed E N Am Menispermaceae 1-11 2008 Menispermum dauricum Dahurian moonseed NE Asia Menispermaceae 1-12 1966 Parthenocissus quinquefolia Virginia creeper E N Am Vitaceae 1-13 1979 Vitis riparia 'Oak Lake' Oak Lake frost grape cultivated origin Vitaceae 1-14 1972 Clematis serratifolia hermit gold clematis Korea Ranunculaceae 1-15 2017 Betula cordifolia mountain paper birch NE N Am Betulaceae 1-16 1988 Celtis occidentalis 'Vahe' Vahe hackberry cultivated origin Cannabaceae 1-17 2007 Salix discolor pussy willow N N Am Salicaceae 1-18 2018 Salix pelita satiny willow C & E N Am Salicaceae 1-19 2014 Salix pyrifolia balsam willow C & E N Am Salicaceae 1-20 2015 Sallix amygdaloides peachleaf willow North America Salicaceae 1-21 2009 Salix purpurea, probably 'Nana' purple willow cultivated origin Salicaceae 1-22 1973 Viburnum trilobum 'Manito' Manito cranberry bush cultivated origin Adoxaceae 1-23 1988 Lonicera 'Freedom' Freedom honeysuckle cultivated origin Caprifoliaceae 1-24 2015 Betula occidentalis water birch W N Am Betulaceae 1-25 1968 Acer ginnala Amur maple E Asia Sapindaceae 1-26 1971 Lonicera involucrata twinberry honeysuckle N Am Caprifoliaceae 1-27 2010 Acer tataricum subsp. semenovii Turkestan maple C Asia Sapindaceae 1-28 2007 Acer tataricum subsp. semenovii Turkestan maple C Asia Sapindaceae 1-29 1971 Lonicera coerulea edulis 'Julia Bugnet' Julia Bugnet honeysuckle cultivated origin Caprifoliaceae 1-30 2015 Salix fragilis 'Bullata' Bullata crack willow cultivated origin Salicaceae 1-31 1971 Lonicera coerulea var. edulis 'George Bugnet' Georges Bugnet honeysuckle cultivated origin Caprifoliaceae 1-32 1968 Viburnum opulus 'Notcutts' Notcutts cranberry bush cultivated origin Adoxaceae 1-33 1970 Viburnum orientale oriental cranberry W Asia Adoxaceae 1-34 2007 Acer tataricum Tatarian maple Eu - W Asia Sapindaceae 1-35 2010 Salix discolor pussy willow C N Am Salicaceae 1-36 2014 Salix lutea yellow willow C & W N Am Salicaceae 1-37 2008 Fraxinus chinensis subsp. rhynchophylla bai la shu NE Asia 1-38 1971 Lonicera xylosteum 'Nana' dwarf European fly honeysuckle cultivated origin Caprifoliaceae 1-39 2017 Cornus sp. dogwood Cornaceae 1-40 2015 Sambucus racemosa European red elder Europe, North A Adoxaceae 1-41 2008 Salix candida sageleaf willow C N Am Salicaceae 2-1 2016 Salix alba 'Sericea' silver willow cultivated origin Salicaceae 2-1.1 2018 Rubus strigosus American red raspberry N Am Rosaceae 2-2 1978 Fraxinus nigra 'Fallgold' Fallgold black ash cultivated origin Oleaceae 2-2.1 2017 Alnus serrulata hazel alder E N Am Betulaceae 2-3 2016 Ulmus parviflora Chinese elm or lacebark elm E Asia Ulmaceae 2-4 1968 Fraxinus mandschurica Manchurian ash NE Asia Oleaceae 2-4.1 2018 Prunus serotina black cherry N Am, South AmRosaceae 2-5 1966 Fraxinus pennsylvanica var. subintegerrima green ash E N Am Oleaceae 2-5.1 2018 Pterocarya stenoptera Chinese wingnut E Asia Juglandaceae 2-6 1967 Fraxinus pennsylvanica red ash E N Am Oleaceae 2-7 2018 Fraxinus nigra black ash E N Am Oleaceae 2-8 1968 Acer negundo (short internode) Manitoba maple C and E N Am Sapindaceae 2-8.1 2016 Carya cordiformis bitternut hickory E N Am Juglandaceae 2-9 2012 Tilia platyphyllos large-leaved linden Eu Malvaceae 2-9.1 2016 Acer nigrum black maple E N Am Sapindaceae 2-10 2012 Acer x freemanii Freeman maple cultivated origin Sapindaceae 2-10.1 2-11 1989 Fraxinus pennsylvanica 'Marshall's Seedless' Marshall's seedless green ash cultivated origin Oleaceae 2-11.1 2016 Picea mariana black spruce N N Am Pinaceae 2-12 1968 Ulmus americana 'Augustine' Augustine American elm cultivated origin Ulmaceae 2-12.1 2016 Gleditsia triacanthos honey locust E N Am Fabaceae 2-13 2008 Tilia americana basswood C & E N Am Malvaceae 2-14 1968 Ulmus americana #6010 American elm cultivated origin Ulmaceae 3-1 2012 Ilex verticillata winterberry E N Am Aqufoliaceae 3-2 1966 Amorpha fruticosa false indigo E N Am Fabaceae 3-3 3-4 2006 Genista tinctoria dyer's greenweed Eu - Turkey Fabaceae 3-5 2011 Salix bebbiana Bebb willow N N Am Salicaceae 3-6 2014 Salix triandra 'Black Maul' Black Maul almond-leaved willow cultivated origin Salicaceae 3-7 2015 Amorpha nana dwarf false indigo N Am Fabaceae 3-8 3-9 2006 Euonymus nanus dwarf euonymus (small ) Eu – C Asia Celastraceae 3-10 1966 Euonymus nanus var. turkestanica dwarf Turkestan euonymus Eu – C Asia Celastraceae 3-11 1966 Euonymus nanus dwarf spindle tree Eu – C Asia Celastraceae 3-12 3-13 1983 Cornus alba 'Aurea' golden dogwood cultivated origin Cornaceae 3-14 1966 Euonymus maackii Maack's euonymus E Asia Celastraceae 3-15 2008 Euonymus alatus winged euonymus E Asia Celastraceae 3-16 2008 Euonymus europaeus European euonymus Eu - W Asia Celastraceae 3-17 1972 Euonymus europaeus 'Aldenhamensis' spindletree cultivated origin Celastraceae 3-18 1973 Euonymus verrucosus wartybark euonymus C & E Asia Celastraceae 3-19 1966 Euonymus obovata running strawberry bush E N Am Celastraceae 2

3-20 2006 Corylus cornuta beaked hazel N N Am Betulaceae 3-21 2018 Weigela florida Weigela E Asia Caprifoliaceae 3-22 1966 Paxistima canbyi canby pachistima E USA Celastraceae 3-23 3-24 1990 Cornus alba 'Coral Beauty' Coral Beauty dogwood cultivated origin Cornaceae 3-25 1983 Cornus sericea 'Johnson' Johnson dogwood cultivated origin Cornaceae 3-26 1983 Cornus amomum subsp. obliqua pale dogwood E N Am Cornaceae 3-27 1983 Cornus sericea #7039 #7039 cultivated origin Cornaceae 3-28 1983 Cornus sericea #4046-81 #4046-81 cultivated origin Cornaceae 3-29 1983 Cornus amomum subsp. obliqua pale dogwood E N Am Cornaceae 3-30 1988 Cornus sericea 'Cardinal' Cardinal dogwood cultivated origin Cornaceae 3-32 2011 Alnus incana speckled alder N N Am Betulaceae 3-33 2011 Salix viminalis 'Alpha' common osier Eu - W Asia Salicaceae 3-34 1990 Cornus alba 'Aurea' Aurea dogwood cultivated origin Cornaceae 3-35 2014 Salix lucida ssp. lasiandra Pacific willow W N Am Salicaceae 3-36 1991 Cornus sericea 'Ruby' Ruby dogwood cultivated origin Cornaceae 3-37 3-38 1999 Cornus #9019 cultivated origin Cornaceae 3-40 2015 Rhamnus cathartica common buckthorn (male) Eu - W Asia, N ARhamnaceae 3-41 2009 Cornus amomum silky dogwood E N Am Cornaceae 3-42 2009 Cornus racemosa gray dogwood E N Am Cornaceae 3-43 2018 Viburnum cassinoides witherod viburnum E N Am Adoxaceae 3-44 2006 Euonymus hamiltonianus Hamilton euonymus C & E Asia Celastraceae 3-45 2006 Euonymus bungeanus winterberry euonymus E Asia Celastraceae 3-46 2013 Cornus rugosa round-leaved dogwood E N Am Cornaceae 3-47 1972 Euonymus europaeus var. intermedius European spindle tree Eu - W Asia Celastraceae 3-48 3-49 1972 Forsythia ovata 'Robusta' Robusta forsythia cultivated origin Oleaceae 3-50 1975 Lonicera korolkowii blue leafed honeysuckle C Asia Caprifoliaceae 3-51 1975 Lonicera vesicaria Korean honeysuckle Korea Caprifoliaceae 3-52 1979 Lonicera chrysantha coraline honeysuckle NE Asia Caprifoliaceae 3-53 3-54 2015 Rhamnus davurica Dahurian buckthorn (male) NE Asia Rhamnaceae 3-55 2012 Lonicera oblongifolia swamp fly honeysuckle E N Am Caprifoliaceae 3-56 2012 Lonicera sp. honeysuckle Caprifoliaceae 3-57 2014 Lonicera spinosa var. albertii thorn honeysuckle C Asia Caprifoliaceae 3-58 2007 Exochorda korolkowii Turkestan pearlbush C Asia Rosaceae 3-59 2006 Amelanchier sanguinea roundleaf serviceberry E N Am Rosaceae 3-60 2011 Lonicera caerulea var. villosa mountain fly honeysuckle N Am Caprifoliaceae 3-60 2013 Lonicera caerulea var. villosa mountain fly honeysuckle N Am Caprifoliaceae 3-61 2013 Ligustrum amurense Amur privet N Oleaceae 3-62 2006 Amelanchier alnifolia Saskatoon serviceberry W N Am Rosaceae 3-63 2015 Amelanchier intermedia intermediate serviceberry E N Am Rosaceae 3-64 3-65 2016 Amelanchier canadensis eastern serviceberry E N Am Rosaceae 3-65.1 2016 Amelanchier laevis smooth serviceberry E N Am Rosaceae 3-66 1967 Viburnum burejaeticum Manchurian viburnum NE Asia Adoxaceae 3-67 3-68 1968 Prinsepia sinensis cherry prinsepia NE Asia Rosaceae 4-1 1969 Tilia x flavescens 'Dropmore' Dropmore linden cultivated origin Malvaceae 4-1.1 2017 Euonymus atropurpureus eastern wahoo E N Am Celastraceae 4-2 1966 Tilia cordata small-leaved linden Eu Malvaceae 4-2.1 2018 Quercus glandulifera (serrata ) Konara oak China, Taiwan, KFagaceae 4-3 2009 Tilia amurensis Amur linden NE Asia Malvaceae 4-3.1 2018 Betula alleghaniensis yellow birch NE N Am Betulaceae 4-4 1968 Tilia mongolica Mongolian linden China Malvaceae 4-4.1 2017 Picea koyamae Koyama's spruce Japan Pinaceae 4-5 2015 Ulmus pumila Siberian elm C - NE Asia Ulmaceae 4-5.1 2017 Picea jezoensis Yezo spruce NE Asia Pinaceae 4-6 1991 Malus #8192 cultivated origin Rosaceae 4-6.1 2017 Sambucus canadensis American elderberry E N Am Adoxaceae 4-7 2008 Quercus bicolor swamp white oak E N Am Fagaceae 4-8 1980 Ulmus davidiana var. japonica 'Thomson' Thomson Japanese elm cultivated origin Ulmaceae 4-8.1 2017 Euonymus sachalinensis Asian spindle tree NE Asia Celastraceae 4-9 1966 Ulmus americana American elm C & E N Am Ulmaceae 4-9.1 2017 Amelanchier laevis Allegheny servieberry E N Am Rosaceae 4-10 1966 Ulmus americana 'Exhibition Boulevard' Exhibition Boulevard American elm cultivated origin Ulmaceae 4-10.1 2017 Acer tegmentosum East Asian striped maple NE Asia Sapindaceae 4-11 1967 Ulmus americana 'Morden' Morden American elm cultivated origin Ulmaceae 4-11.1 2017 Amelanchier canadensis Canadian or shadblow serviceberry E N Am Rosaceae 4-12 2009 Juglans nigra black walnut E N Am Juglandaceae 4-12.1 2017 Picea meyeri Meyer's spruce China Pinaceae 4-13 1967 Ulmus americana 'Skinner's Upright' Skinner's Upright American elm cultivated origin Ulmaceae 4-13.1 2016 Picea obovata Siberian spruce Russia, Mongoli Pinaceae 4-14 1974 Fraxinus americana white ash E N Am Oleaceae 5-1 2018 Clematis alpina subsp. siberica Siberian alpine clematis China, MongoliaRanunculaceae 5-2 1967 Lonicera korolkowii var. zabellii Zabeli honeysuckle cultivated origin Caprifoliaceae 5-3 2014 Symphoricarpos albus snowberry N Am Caprifoliaceae 5-4 1966 Lonicera maximowiczii var. sachalinensis Sakhalin honeysuckle NE Asia Caprifoliaceae 5-5 2014 Corylus , probably C. avellana hazel Eu - W Asia Betulaceae 5-6 1966 Lonicera tatarica 'Arnold Red' Arnold Red honeysuckle cultivated origin Caprifoliaceae 5-7 2008 Symphoricarpos occidentalis buckbrush N Am Caprifoliaceae 5-8 1966 Lonicera tatarica 'Beavermor' Beavermor honeysuckle cultivated origin Caprifoliaceae 5-9 2006 Lonicera maackii Amur honeysuckle NE Asia Caprifoliaceae 5-10 1981 Lonicera stenantha honeysuckle C Asia Caprifoliaceae 5-11 1966 Lonicera xylosteoides 'Clavey's Dwarf' Clavey's Dwarf honeysuckle cultivated origin Caprifoliaceae 5-12 2006 Diervilla lonicera northern bush-honeysuckle C & E N Am Diervillaceae 3

5-13 1966 Lonicera x bella 'Dropmore' bella Dropmore honeysuckle cultivated origin Caprifoliaceae 5-14 1966 Lonicera coerulea var. edulis sweetberry honeysuckle E Asia Caprifoliaceae 5-15 1966 Lonicera very dwarf honeysuckle cultivated origin Caprifoliaceae 5-16 1966 Lonicera tatarica Tatarian honeysuckle C Asia – E Asia Caprifoliaceae 5-17 1966 Lonicera xylosteum European fly honeysuckle Eu - W Asia Caprifoliaceae 5-18 1967 Lonicera ruprechtiana regal honeysuckle NE Asia Caprifoliaceae 5-19 1967 Lonicera ruprechtiana var. calvescens Manchurian honeysuckle China, Korea, RuCaprifoliaceae 5-20 2015 Lonicera tatarica 'Frosty' Frosty Tatarian honeysuckle cultivated origin Caprifoliaceae 5-21 1966 Viburnum burejaeticum Manchurian viburnum NE Asia Adoxaceae 5-22 1966 Viburnum lentago nannyberry C & E N Am Adoxaceae 5-23 2009 Viburnum dentatum arrowood viburnum E N Am Adoxaceae 5-24 2017 Corylus sieboldiana var. mandshurica Manchurian hazel NE Asia Betulaceae 5-25 1966 Viburnum rafinesquianum downy-leaved arrowwood C & E N Am Adoxaceae 5-26 1966 Viburnum sargentii Sargent's cranberry NE Asia Adoxaceae 5-27 2014 Viburnum sargentii subsp. calvescens NE Asia Adoxaceae 5-28 2016 Viburnum trilobum high bush cranberry N Am Adoxaceae 5-29 1966 Viburnum opulus 'Nanum' dwarf cranberry cultivated origin Adoxaceae 5-30 2011 Viburnum edule low-bush cranberry N Am, NE Asia Adoxaceae 5-31 1967 Viburnum trilobum 'Garry Pink' Garry Pink high bush cranberry cultivated origin Adoxaceae 5-32 1967 Viburnum opulus SX65-37 European cranberry bush cultivated origin Adoxaceae 5-32 2015 Viburnum opulus SX65-37 European cranberry bush cultivated origin Adoxaceae 5-33 2015 Aralia elata Japanese angelica tree NE Asia Araliaceae 5-34 2015 Robinia pseudoacacia black locust SE USA Fabaceae 5-35 2012 Ptelea trifoliata hoptree E N Am Rutaceae 5-36 2008 Ostryopsis davidiana hu zhen zi, hazel-hornbeam N & W China Betulaceae 5-37 2012 Deutzia parviflora var. amurensis Amur deutzia N China Hydrangeaceae 5-38 1994 Aronia melanocarpa black chokecherry E N Am Rosaceae 5-39 2013 Forestiera neomexicana desert olive SW USA Oleaceae 5-40 2006 Symphoricarpos orbiculatus coralberry E USA Caprifoliaceae 5-41 2018 Ceanothus americanus New Jersey tea C – E N Am Rhamnaceae 5-42 2009 Hypericum prolificum shrubby St. Johnswort E USA Hypericaceae 5-43 2006 Aralia spinosa devil's walking stick E N Am Araliaceae 6-1 1969 Tilia mongolica #6804 #6804 Mongolian basswood cultivated origin Malvaceae 6-2 1967 Populus x berolinensis Berlin poplar cultivated origin Salicaceae 6-2.1 2018 Rubus parviflorus thimbleberry W N Am Rosaceae 6-3 1992 Populus x berolinensis Berlin poplar cultivated origin Salicaceae 6-3.1 2018 Rubus odoratus wild flowering raspberry E N Am Rosaceae 6-4 1966 Populus x jackii 'Northwest' northwest poplar cultivated origin Salicaceae 6-5 1992 Populus x robusta 66-693 cultivated origin Salicaceae 6-6 1968 Populus deltoides var. occidentalis 'Dakotah' Dakotah poplar cultivated origin Salicaceae 6-7 2007 Populus angustifolia narrowleaf cottonwood W N Am Salicaceae 6-8 1966 Populus hybrid hybrid poplar cultivated origin Salicaceae 6-8.1 2018 Castanea dentata American chestnut E N Am Fagaceae 6-9 1991 Malus 7601 flowering crab cultivated origin Rosaceae 6-9.1 2017 Abies fraseri Fraser fir SE USA Pinaceae 6-10 1972 Populus x canadensis 'Serotina de Selys' Serotina de Selys poplar cultivated origin Salicaceae 6-10.1 2018 Quercus mongolica var. grosseserrata Mongolian oak NE Asia Fagaceae 6-11 2016 Juglans mandshurica Manchurian walnut NE Asia Juglandaceae 6-11.1 2017 komarowii nodding lilac China Oleaceae 6-12 2012 Populus x generosa Generosa poplar cultivated origin Salicaceae 6-12.1 2017 Syringa wolfii Wolf's lilac NE Asia Oleaceae 6-13 2006 Juglans mandshurica Manchurian walnut NE Asia Juglandaceae 6-13.1 2017 Quercus gambelii Gambel oak SW USA Fagaceae 6-14 2006 Juglans cinerea butternut E N Am Juglandaceae 6-14.1 2017 Rhus glabra smooth sumac N America Anacardiaceae 7-1 1991 Potentilla fruticosa 'Mount Everest' Mount Everest potentilla cultivated origin Rosaceae 7-2 2008 Philadelphus pubescens hoary mockorange E USA Hydrangeaceae 7-3 1967 Spiraea x bumalda 'Froebeli' Froebel dwarf pink spirea cultivated origin Rosaceae 7-4 1991 Potentilla fruticosa 'Yellow Gem' Yellow Gem potentilla cultivated origin Rosaceae 7-5 1966 Spiraea chamaedryfolia var. ulmifolia elmleaf spirea E Asia Rosaceae 7-6 1966 Spiraea x media var. sericea oriental spirea cultivated origin Rosaceae 7-7 1966 Spiraea trilobata threelobe spirea E Asia Rosaceae 7-8 2009 Philadelphus tenuifolius slenderleaf mockorange NE Asia Hydrangeaceae 7-9 2000 Spiraea nipponica 96-7462 Japanese spirea cultivated origin Rosaceae 7-10 1966 Spiraea nipponica Nippon spirea Japan Rosaceae 7-11 1978 Spiraea 'Korman' Korman spirea cultivated origin Rosaceae 7-12 2014 Viburnum lantana wayfaring tree Eu - W Asia Adoxaceae 7-13 1966 Spiraea x multiflora 'Snow Garland' Snowgarland spirea cultivated origin Rosaceae 7-14 1966 Spiraea 'Summersnow' Summersnow spirea cultivated origin Rosaceae 7-15 1966 Spiraea trichocarpa Korea spirea N China, Korea Rosaceae 7-16 1966 Spiraea trilobata threelobe spirea E Asia Rosaceae 7-17 7-18 1966 Spiraea 'Fairy Queen' Fairy Queen spirea cultivated origin Rosaceae 7-19 1971 Spiraea arguta 'Grefsheim' Grefsheim spirea cultivated origin Rosaceae 7-20 1967 Spiraea x media 'Snowdrift' Snowdrift spirea cultivated origin Rosaceae 7-21 1966 Spiraea trichocarpa 'Density' Density spirea cultivated origin Rosaceae 7-22 1966 Spiraea henryi Henry spirea China Rosaceae 7-23 2007 Morus rubra red mulberry E N Am Moraceae 7-24 2013 Corylus americana American hazel E N Am Betulaceae 7-25 1995 Spiraea alba 'Neywoods Gold' Neywoods gold spirea cultivated origin Rosaceae 7-26 1967 Spiraea x arguta Garland spirea cultivated origin Rosaceae 7-27 1980 Spiraea x bumalda 'Goldflame' Goldflame spirea cultivated origin Rosaceae 7-28 7-29 1967 Spiraea chamaedryfolia germander spirea Eu – E Asia Rosaceae 7-30 1974 Potentilla fruticosa 'Goldfried' Goldfried potentilla cultivated origin Rosaceae 7-31 1990 Potentilla fruticosa 'Snowbird' Snowbird potentilla cultivated origin Rosaceae 7-32 2012 Rhamnus saxatilis rock buckthorn Eu Rhamnaceae 4

7-33 1967 Potentilla fruticosa var. dahurica Dahurian potentilla NE Asia Rosaceae 7-34 1993 Potentilla fruticosa var. tenuloba tangerine potentilla cultivated origin Rosaceae 7-35 1966 Potentilla fruticosa 'Primrose Beauty' Primrose Beauty potentilla cultivated origin Rosaceae 7-36 1966 Potentilla fruticosa 'Katherine Dykes' Katherine Dykes potentilla cultivated origin Rosaceae 7-37 1990 Potentilla fruticosa 'Yellowbird' Yellowbird potentilla cultivated origin Rosaceae 7-38 1966 Potentilla fruticosa 'Elizabeth' Elizabeth potentilla cultivated origin Rosaceae 7-39 1966 Potentilla fruticosa var. grandiflora 'Jackmans' Jackmans potentilla cultivated origin Rosaceae 7-40 1981 Potentilla fruticosa 'Goldfinger' Goldfinger potentilla cultivated origin Rosaceae 7-41 1966 Potentilla fruticosa shrubby cinquefoil or potentilla N A – Eurasia Rosaceae 7-42 1966 Potentilla fruticosa 'Friedrichsenii' Friedrichsen potentilla cultivated origin Rosaceae 7-43 7-44 7-45 1983 Potentilla fruticosa 'Goldfinger' Goldfinger potentilla cultivated origin Rosaceae 7-46 1967 Potentilla fruticosa 'Snowflake' Snowflake potentilla cultivated origin Rosaceae 7-47 1967 Potentilla fruticosa 'White Gold' White Gold potentilla cultivated origin Rosaceae 7-48 1967 Potentilla fruticosa 'Primrose Beauty' Primrose Beauty potentilla cultivated origin Rosaceae 7-49 1967 Potentilla fruticosa 'Maanley's' Maanley's potentilla cultivated origin Rosaceae 7-49.1 2016 Yucca filamentosa Adam's needle SE USA Asparagaceae 7-50 1993 Potentilla fruticosa 'Princess' Princess potentilla cultivated origin Rosaceae 7-50.1 2016 Yucca glauca Great Plains yucca C USA, Alberta Asparagaceae 8-1 2017 Gleditsia triacanthos honey locust C N Am Fabaceae 8-1.1 2012 Betula neoalaskana Alaska paper birch NW N Am Betulaceae 8-2 2013 Quercus ellipsoidalis northern pin or Hill's oak E N Am Fagaceae 8-3 2017 Picea glehnii Sakhalin spruce Japan, Russia Pinaceae 8-3.1 2014 Betula davurica Dahurian birch NE Asia Betulaceae 8-4 1966 Betula papyrifera white or paper birch N Am Betulaceae 8-4.1 2017 Sorbus alnifolia Korean whitebeam China, Korea, Ja Rosaceae 8-5 1994 Betula platyphylla Asian white birch E Asia Betulaceae 8-5.1 2013 Quercus robur English oak, pendunculate oak Eu Fagaceae 8-6 2015 Sorbus amurensis (pouhashanensis ) Amur mountainash NE Asia Rosaceae 8-6.1 2014 Acer saccharum sugar maple E N Am Sapindaceae 8-6.1 2017 Acer saccharum sugar maple E N Am Sapindaceae 8-7 2018 Acer pictum subsp, mayrii mono maple Japan, Sakhalin ISapindaceae 8-8 1974 Betula lutea yellow birch E N Am Betulaceae 8-8.1 2012 Betula lenta cherry birch E N Am Betulaceae 8-9 2007 Phellodendron amurense Amur cork tree NE Asia Rutaceae 8-9.1 2012 Phellodendron sachalinense Sakhalin corktree NE Asia Rutaceae 8-10 1972 Aesculus glabra Ohio buckeye E N Am Sapindaceae 8-10.1 2018 Quercus velutina black oak E N Am Fagaceae 8-11 2006 Aesculus flava yellow buckeye E N Am Sapindaceae 8-11.1 2018 Quercus coccinea scarlet oak E USA Fagaceae 8-12 2016 Quercus mongolica Mongolian oak NE Asia Fagaceae 8-12.1 2018 Cercidiphyllum japonicum katsura tree Japan, China Cercidiphyllaceae 8-13 1966 Acer saccharinum silver maple E N Am Sapindaceae 8-14 2017 Maackia amurensis Amur maackia NE Asia Fabaceae 8-15 2017 Juglans nigra black walnut E N Am Juglandaceae 9-1 2015 Betula middendorffii (divaricata ) birch NE Asia Betulaceae 9-2 2013 Salix petiolaris meadow willow C N Am Salicaceae 9-3 1966 Philadelphus schrenkii var. jackii Schrenk's mockorange China, Korea Hydrangeaceae 9-4 1987 Philadelphus 'Snowgoose' Snowgoose mockorange cultivated origin Hydrangeaceae 9-5 2006 Philadelphus caucasicus Caucasus mockorange Caucasus region Hydrangeaceae 9-6 1966 Philadelphus 'Marjorie' Marjorie mockorange cultivated origin Hydrangeaceae 9-7 1966 Philadelphus 'Audrey' Audrey mockorange cultivated origin Hydrangeaceae 9-8 2013 Aronia arbutifolia red chokeberry E N Am Rosaceae 9-9 1966 Philadelphus 'Galahad' Galahad mockorange cultivated origin Hydrangeaceae 9-10 1966 Philadelphus 'Mrs. Thompson' Mrs. Thompson mockorange cultivated origin Hydrangeaceae 9-11 1983 Syringa reticulata O.P. Japanese tree lilac cultivated origin Oleaceae 9-12 1975 'Mrs. W. E. Marshall' Mrs. W. E. Marshall lilac cultivated origin Oleaceae 9-13 1975 Syringa oblata var. dilatata Korean early lilac N China Oleaceae 9-13 2013 Ribes nigrum blackcurrant Eu - C Asia Grossulariaceae 9-14 2014 Rhus aromatica fragrant sumac N Am Anacardiaceae 9-15 2000 Syringa x hyacinthiflora Maidens Blush lilac cultivated origin Oleaceae 9-16 1991 Spiraea alba narrow-leaved meadowsweet C & E N Am Rosaceae 9-17 1975 Syringa vulgaris 'Priscilla' Priscilla lilac cultivated origin Oleaceae 9-18 9-19 1991 Syringa x prestoniae 'Dawn' Preston Dawn lilac cultivated origin Oleaceae 9-20 2007 Physocarpus monogynus mountain ninebark C & W USA Rosaceae 9-21 1991 Syringa x prestoniae 'Katherina' Katherina lilac cultivated origin Oleaceae 9-22 1966 Physocarpus amurensis Amur ninebark NE Asia Rosaceae 9-23 1966 Physocarpus opulifolius 'Luteus' golden ninebark cultivated origin Rosaceae 9-24 1997 Physocarpus capitatus ninebark W N Am Rosaceae 9-25 1966 Physocarpus opulifolius 'Nanus' dwarf ninebark cultivated origin Rosaceae 9-26 1969 Physocarpus opulifolius common ninebark E N Am Rosaceae 9-27 1968 Elutherococcus sessilflorus hardy aralia China, Korea Araliaceae 9-28 2008 Elutherococcus senticosus eluthero or Siberian ginseng NE Asia Araliaceae 9-29 1967 Philadelphus lewisii 'Waterton' Waterton mockorange cultivated origin Hydrangeaceae 9-30 2018 Cornus mas Cornelian cherry S Europe – SW ACornaceae 9-31 1970 Philadelphus virginalis 'Bouquet Blanc' Bouquet Blanc mockorange cultivated origin Hydrangeaceae 9-32 1988 Ribes rubrum northern red currant N Eu Grossulariaceae 9-33 1993 Ribes golden currant Grossulariaceae 9-34 1979 Ribes 'Stanley Thornless' Stanley Thornless currant cultivated origin Grossulariaceae 9-35 1973 Ribes alpinum 'Pumilum' early alpine currant cultivated origin Grossulariaceae 9-36 2018 Forsythia ovata Korean forsythia Korean PeninsulaOleaceae 9-37 1969 Rhus trilobata skunkbush W N Am Anacardiaceae 9-38 1972 Ribes aureum golden currant W N Am Grossulariaceae 9-39 1970 Ribes triste swamp red currant N N Am Grossulariaceae 9-40 2017 Prunus emarginata bitter cherry W N Am Rosaceae 5

9-41 1974 Ribes oxycanthoides Canada gooseberry N N Am Grossulariaceae 9-42 2018 Hamamelis virginiana witch-hazel E N Am Hamamelidaceae 9-43 1967 Ribes hirtellum hairystem gooseberry C & E N Am Grossulariaceae 9-45 1967 Ribes americanum American black currant C & E N Am Grossulariaceae 9-46 2010 Physocarpus malvaceus mallow ninebark W N Am Rosaceae 9-47 2006 Lycium barbarum wolfberry Eu - W Asia Solanaceae 9-48 1966 Ribes diacanthum Siberian currant C & E Asia Grossulariaceae 9-49 1966 Ribes odoratum buffalo or Missouri currant C N Am Grossulariaceae 9-50 1972 Ribes 'Dakota Dwarf' Dakota dwarf currant cultivated origin Grossulariaceae 10-1 1974 Betula pumila var. glandulifera bog birch N Am Betulaceae 10-1.1 10-1.2 2017 Clematis macropetala downy clematis China, MongoliaRanunculaceae 10-2 1966 Crataegus erythropoda chocolate hawthorn W USA Rosaceae 10-2.1 2012 Lonicera dioica twining honeysuckle N & E N Am Caprifoliaceae 10-3 1982 Gleditsia sinensis Chinese honey locust China Fabaceae 10-3.1 2007 Rosa maximowicziana climbing rose NE Asia Rosaceae 10-4 1966 Crataegus chrysocarpa round-leaved hawthorn N Am Rosaceae 10-4.1 2009 Rosa 'Polstjarnan' Polstjarnan or Polstar rose cultivated origin Rosaceae 10-4.2 2018 Actinidia arguta ‘Meader’ Meader hardy male kiwi cultivated origin Actinidiaceae 10-5 1966 Crataegus arnoldiana Arnold hawthorn E USA Rosaceae 10-5.1 2012 Clematis 'Joe Zary' Joe Zary clematis cultivated origin Ranunculaceae 10-5.2 2018 Schisandra chinensis wu wei zi (five flavour berry) NE Asia Schisandraceae 10-6 1968 Crataegus scabrida rough hawthorn E N Am Rosaceae 10-6.1 2015 Tripterygium regelii Redgel's threewingnut N. China, Korea, Celastraceae 10-6.2 2012 Actinidia kolomikta kolomikta vine NE Asia Actinidiaceae 10-7 1966 Crataegus chlorosarca blackfruit hawthorn China Rosaceae 10-7.1 2010 Parthenocissus tricuspidata Boston ivy NE Asia Vitaceae 10-8 1975 Crataegus rivularis river hawthorn W USA Rosaceae 10-8.1 2014 Clematis occidentalis var. grosseserrata western blue clematis W N Am Ranunculaceae 10-8.2 2010 Lonicera hirsuta hairy honeysuckle E N Am Caprifoliaceae 10-9 2017 Pinus monticola western white pine W N Am Pinaceae 10-9.1 2008 Vitis amurensis Amur grape N China Vitaceae 10-10 1967 Crataegus beata hawthorn E N Am Rosaceae 10-10.1 2014 Ampelopsis humulifolia hops ampelopsis E Asia Vitaceae 10-10.2 2007 Celastrus scandens American bittersweet C and E N Am Celastraceae 10-11 1983 Crataegus arnoliana O.P. hawthorn cultivated origin Rosaceae 10-11.1 2008 Vitis riparia riverbank grape C & E N Am Vitaceae 10-11.2 2008 Schisandra chinensis wu wei zi (five flavour berry) NE Asia Schisandraceae 10-12 1972 Crataegus x mordenensis 'Snowbird' Snowbird hawthorn cultivated origin Rosaceae 10-12.1 2013 Clematis ligusticifolia western white clematis W N Am Ranunculaceae 10-13 1972 Crataegus pedicellata Ontario hawthorn E N Am Rosaceae 10-13.1 2010 Clematis intricata clematis NE Asia Ranunculaceae 10-13.2 2014 Actinidia kolomikta 'Arctic Beauty' Arctic Beauty kiwi cultivated origin Actinidiaceae 10-14 1968 Crataegus submollis Quebec hawthorn E N Am Rosaceae 11-1 1999 Prunus 'Carmine Jewel' SK Carmine Jewel sour cherry cultivated origin Rosaceae 11-2 2017 Alnus rubra red alder W N Am Betulaceae 11-2.1 2006 Juniperus chinensis var. sargentii Sargent juniper NE Asia Cupressaceae 11-2.2 2018 Staphylea trifolia American bladdernut E N Am Staphyleaceae 11-2.3 2017 Cornus racemosa gray dogwood NE N Am Cornaceae 11-2.4 2006 Juniperus scopulorum Rocky Mountain juniper cultivated origin Cupressaceae 11-2.5 2018 Nyssa sylvatica black tupelo E N Am Cornaceae 11-3 2018 Calycanthus floridus eastern sweetshrub E USA Calycanthaceae 11-4 1998 Juniperus horizontalis 'Emerson' Emerson creeping juniper cultivated origin Cupressaceae 11-5 1998 Juniperus horizontalis 'New Blue Tams' New Blue Tams creeping juniper cultivated origin Cupressaceae 11-6 1996 Juniperus horizontalis 'Grey Carpet' Grey Carpet creeping juniper cultivated origin Cupressaceae 11-7 1996 Juniperus horizontalis 'Humilis' Humilis creeping juniper cultivated origin Cupressaceae 11-8 1996 Juniperus x media 'Pfiteriana Compacta' Pfiteriana juniper cultivated origin Cupressaceae 11-9 1996 Juniperus horizontalis 9106 creeping juniper #9106 cultivated origin Cupressaceae 11-10 1996 Juniperus horizontalis 9107 creeping juniper #9107 cultivated origin Cupressaceae 11-11 1996 Juniperus horizontalis 'Nebraska' Nebraska creeping juniper cultivated origin Cupressaceae 11-12 1996 Juniperus horizontalis 'Blue Mat' Blue Mat creeping juniper cultivated origin Cupressaceae 11-13 1996 Juniperus horizontalis 'Bar Harbour' Bar Harbour creeping juniper cultivated origin Cupressaceae 11-14 1996 Juniperus sabina 'Buffalo' Buffalo Savin juniper cultivated origin Cupressaceae 11-15 2018 Tsuga diversifolia northern Japanese hemlock Japan Pinaceae 11-16 1996 Juniperus horizontalis 'Kleskun' Kleskun creeping juniper cultivated origin Cupressaceae 11-17 1996 Juniperus horizontalis 'Mini Arcade' Mini Arcade creeping juniper cultivated origin Cupressaceae 11-18 1995 Juniperus horizontalis 'Prostrata' Prostrata creeping juniper cultivated origin Cupressaceae 11-19 1995 Juniperus horizontalis 'Yukon Belle' Yukon Belle creeping juniper cultivated origin Cupressaceae 11-20 1994 Juniperus horizontalis 'Wapiti' Wapiti creeping juniper cultivated origin Cupressaceae 11-21 2015 Taxus cuspidata Japanese yew NE Asia Taxaceae 11-22 1974 Juniperus chinensis 'Pfitzeriana' Pfitzer Chinese juniper cultivated origin Cupressaceae 11-23 2015 Cupressus nootkatensis Nootka cypress #6 W N Am Cupressaceae 11-24 1968 Juniperus chinensis 'Maney' Maney Chinese juniper cultivated origin Cupressaceae 11-25 1968 Juniperus chinensis 'Ames' Ames Chinese juniper cultivated origin Cupressaceae 11-26 1970 Juniperus sabina 'Blue Danube' Blue Danube juniper cultivated origin Cupressaceae 11-27 1981 Thuja occidentalis 'Europe Gold' Europe Gold arborvitae cultivated origin Cupressaceae 11-28 2011 Taxus canadensis Canada yew E N Am Taxaceae 11-29 1971 Juniperus horizontalis 'Plumosa Compacta' Compact Andorra creeping juniper cultivated origin Cupressaceae 11-30 2013 Taxus x media yew cultivated origin Taxaceae 11-31 1972 Juniperus chinensis 'Mountbatten' Mountbatten Chinese juniper cultivated origin Cupressaceae 11-32 1973 Thuja occidentalis 'Brandon' Brandon white cedar cultivated origin Cupressaceae 11-33 1981 Juniperus 'Emerald Green' Emerald Green juniper cultivated origin Cupressaceae 11-34 1998 Thuja occidentalis 'Boothii' Boothii arborvitae cultivated origin Cupressaceae 11-35 1998 Thuja occidentalis 'Masonic' Masonic arborvitae cultivated origin Cupressaceae 11-36 1992 Thuja occidentalis 'Sherwood Moss' Sherwood Moss arborvitae cultivated origin Cupressaceae 11-37 2017 Cytisus sp. broom Eurasia Fabaceae 11-38 2016 Juniperus rigida temple juniper NE Asia Cupressaceae 6

11-39 2007 Arctostaphylos uva-ursi kinnikinnick or bearberry Eu – Asia – N A Ericaceae 11-40 1992 Juniperus horizontalis 'Blue Acres' Blue Acres creeping juniper cultivated origin Cupressaceae 11-41 1992 Juniperus horizontalis 'Green Acres' Green Acres creeping juniper cultivated origin Cupressaceae 11-42 1992 Juniperus sabina 'Hicksii' Hicksii savin juniper cultivated origin Cupressaceae 11-43 1972 Thuja occidentalis 'Aureovariegata' white cedar cultivated origin Cupressaceae 11-44 1981 Juniperus horizontalis 'Wapiti' Wapiti creeping juniper cultivated origin Cupressaceae 11-45 11-46 1981 Juniperus horizontalis 'Dunvegan Blue' Dunvegan Blue creeping juniper cultivated origin Cupressaceae 11-47 2015 Pyrus caucasica Caucasian pear SE Eu – W Asia Rosaceae 11-48 2006 Ribes cynosbati prickly gooseberry E N Am Grossulariaceae 11-49 1972 Ribes sanguineum fetid or skunk currant coastal W N Am Grossulariaceae 11-50 2016 Prinsepia uniflora hedge prinsepia China Rosaceae 12-1 1972 Crataegus douglasii Douglas hawthorn N & W N Am Rosaceae 12-2 1975 Malus 'Red Splendor' Red Splendor flowering crab cultivated origin Rosaceae 12-3 1967 Malus 'Arctic Dawn' Arctic Dawn flowering crab cultivated origin Rosaceae 12-4 1969 Malus 'Kelsey' Kelsey flowering crab cultivated origin Rosaceae 12-5 1978 Malus 'Radiant' Radiant flowering crab cultivated origin Rosaceae 12-6 1981 Crataegus macracatha (succulenta ) fleshy hawthorn N Am Rosaceae 12-7 1970 Malus crabapple cultivated origin Rosaceae 12-8 2018 Cercis canadensis eastern redbud E N Am Fabaceae 12-9 1976 Malus 'Pink Cascade' Pink Cascade flowering crab cultivated origin Rosaceae 12-10 2018 Carya ovata shagbark hickory E N Am Juglandaceae 12-11 1995 Malus 'Redy' Redy crabapple cultivated origin Rosaceae A. Weninger (Gardens North, ON) , T. Kaban 12-12 1991 Malus #8795 crabapple #8795 cultivated origin Rosaceae 12-13 1976 Malus 'Red Jade' Red Jade flowering crab cultivated origin Rosaceae 12-14 2012 Aesculus hippocastanum horsechestnut Eu Sapindaceae 12-15 1979 Ulmus davidiana var. japonica #7617 Japanese elm #7617 cultivated origin Ulmaceae 12-16 1979 Ulmus davidiana var. japonica #7619 Japanese elm #7619 cultivated origin Ulmaceae 12-17 1979 Celtis occidentalis #7101 hackberry #7101 cultivated origin Cannabaceae 12-18 2006 Catalpa ovata Chinese catalpa China Bignoniaceae 12-19 2016 Chamaecyparis pisifera sawara falsecypress Japan Cupressaceae 12-20 1966 Malus 'Snowcap' Snowcap flowering crab cultivated origin Rosaceae 12-21 2008 Fraxinus bungeana dwarf flowering ash, Bunge's ash N China Oleaceae 12-22 2012 Catalpa speciosa northern catalpa E USA Bignoniaceae 12-23 2018 Pseudotsuga menziesii var. glauca Rocky Mountain Douglas-fir W N Am Pinaceae 12-24 1970 Malus 'Sundog' Sundog flowering crab cultivated origin Rosaceae 12-25 1979 Malus 'Rosthern Pyramidal' Rosthern Pyramidal flowering crab cultivated origin Rosaceae 12-26 1979 Malus 'Sutherland' Sutherland flowering crab cultivated origin Rosaceae 12-27 1979 Acer saccharinum silver maple #7722 E N Am Sapindaceae 13-1 2012 Myrica gale sweet gale N N Am – N EurMyricaceae 13-2 2018 Rhododendron luteum yellow rhododendron SE Eu to SW As Ericaceae 13-3 2013 Cupressus nootkatensis Nootka cypress #7 W N Am Cupressaceae 13-4 2018 Rhododendron sichotense rhododendron Sikhote Alin mouEricaceae 13-5 1991 Juniperus sabina 'Buffalo' Buffalo Savin juniper cultivated origin Cupressaceae 13-6 2013 Lonicera utahensis red twinberry W N Am Caprifoliaceae 13-7 2018 Rhododendron schlippenbachii Royal azalea Korean PeninsulaEricaceae 13-8 2017 Rhododendron dauricum Dahurian rhododendron E Asia Ericaceae 13-9 1966 Juniperus sabina Savin juniper Eu - W Asia Cupressaceae 13-10 13-11 2017 Rhododendron ledebourii rhododendron Altai Mountains, Ericaceae 13-12 1966 Juniperus sabina 'Skandia' Skandia juniper cultivated origin Cupressaceae 13-13 13-14 1971 Thuja occidentalis 'Golden' Golden arborvitae cultivated origin Cupressaceae 13-15 1983 Juniperus 'Winter Blue' Winter Blue juniper cultivated origin Cupressaceae 13-16 2017 Tsuga mertensiana mountain hemlock W N Am Pinaceae 13-17 2018 Abies mariesii Maries fir Japan Pinaceae 13-18 1967 Thuja occidentalis (Lake St. John #1) Lake St. John #1 arborvitae E N Am Cupressaceae 13-19 1967 Thuja occidentalis (Lake St. John #2) Lake St. John #2 arborvitae E N Am Cupressaceae 13-20 1967 Thuja occidentalis (Lake St. John #3) Lake St. John #3 arborvitae E N Am Cupressaceae 13-21 1972 Thuja occidentalis 'Globosa' Globe arborvitae cultivated origin Cupressaceae 13-22 13-23 2016 Daphne mezereum February daphne Eu - W Asia Thymelaeaceae 13-24 2017 Spiraea chamaedryfolia Elm-leaved spirea Se Eu, Asia Rosaceae 13-25 1970 Thuja occidentalis 'Winona' Winona arborvitae cultivated origin Cupressaceae 13-26 1968 Thuja occidentalis 'Hetz Midget' Hetz Midget arborvitae cultivated origin Cupressaceae 13-27 1970 Thuja occidentalis 'Little Gem' Green Globe arborvitae cultivated origin Cupressaceae 13-28 2011 Juniperus horizontalis creeping juniper N N Am Cupressaceae 13-29 13-30 2006 Mahonia repens creeping mahonia W N Am Berberidaceae 13-31 1970 Thuja occidentalis 'Little Champion' Little Champion arborvitae cultivated origin Cupressaceae 13-32 1979 Thuja occidentalis 'Little Giant' Little Giant arborvitae cultivated origin Cupressaceae 13-33 1991 Juniperus sabina 'Calgary Carpet' Calgary Carpet juniper cultivated origin Cupressaceae 13-34 1981 Thuja 'Golden Champion' Golden Champion cedar cultivated origin Cupressaceae 13-35 1970 Thuja occidentalis 'Ellwangeriana' Ellwanger arborvitae cultivated origin Cupressaceae 13-36 1966 Thuja occidentalis 'Holmstrup' Holmstrup arborvitae cultivated origin Cupressaceae 13-37 1970 Thuja koraiensis Korean arborvitae China, Korea Cupressaceae 13-38 1966 Thuja occidentalis 'Sunburn Proof' Sunburn Proof arborvitae cultivated origin Cupressaceae 13-39 1966 Thuja occidentalis 'Wareana' Siberian arborvitae cultivated origin Cupressaceae 13-40 1970 Thuja occidentalis Eastern whitecedar E N Am Cupressaceae 13-41 1972 Thuja occidentalis 'Carman Columnar' Carman columnar arborvitae cultivated origin Cupressaceae 13-42 1967 Thuja occidentalis 'Mission Gardens' Mission Gardens arborvitae cultivated origin Cupressaceae 13-43 1981 Thuja occidentalis 'Skybound' Skybound arborvitae cultivated origin Cupressaceae 13-44 Pinaceae 13-45 1966 Picea glauca 'Conica' dwarf Alberta spruce cultivated origin Pinaceae 13-46 1971 Thuja occidentalis 'Woodwardii' Woodward arborvitae cultivated origin Cupressaceae 13-47 1971 Thuja occidentalis 'Techney' Techney arborvitae cultivated origin Cupressaceae 13-48 7

13-49 1970 Thuja occidentalis, 'Aurea' group arborvitae cultivated origin Cupressaceae 14-1 2017 Betula pendula European white birch Eurasia Betulaceae 14-2 1974 Malus 'Leslie' Leslie flowering crab cultivated origin Rosaceae 14-3 1991 Picea abies 'Pendula' weeping Norway spruce cultivated origin Pinaceae 14-4 1990 Fraxinus pennsylvanica 'Dakotah Centennial' Dakotah Centennial ash cultivated origin Oleaceae 14-5 2017 Pyrus betulifolia birchleaf pear China Rosaceae 14-6 ? Malus 'Sparkler' Sparkler crabapple cultivated origin Rosaceae 14-7 2009 Sorbus pohuashanensis mountain-ash China Rosaceae 14-8 1972 Malus 'Alred' Alred flowering crab cultivated origin Rosaceae 14-9 2015 Sorbus americana American mountainash E N Am Rosaceae 14-10 1995 Tilia japonica Japanese linden Japan, China Malvaceae 14-10 2012 Tilia japonica Japanese linden Japan, China Malvaceae 14-11 1995 Tilia x euchlora 'Redmond' Redmond linden cultivated origin Malvaceae 14-12 1967 Malus 'Garry' Garry flowering crab cultivated origin Rosaceae 14-13 1994 Prunus virginina var. melanocarpa 70-2193 Black chokecherry cultivated origin Rosaceae 14-14 1993 Prunus x nigrella Muckle plum cultivated origin Rosaceae 14-15 2016 Prunus davidiana Chinese wild peach China Rosaceae 14-16 2014 Prunus armeniaca apricot, cultivated Asia Rosaceae 14-17 2014 Thuja plicata western redcedar W N Am Cupressaceae 14-18 1972 Malus baccata 'Jackii' Jack Siberian crabapple cultivated origin Rosaceae 14-19 2009 Carpinus caroliniana American hornbeam, blue-beech E N Am Betulaceae 14-20 2018 Quercus muehlenbergii chinquapin oak E N Am Fagaceae 14-21 1967 Malus 'Selkirk' Selkirk flowering crab cultivated origin Rosaceae 14-22 1979 Prunus nigra Canada plum E N Am Rosaceae 14-23 1975 Ostrya virginiana American hop-hornbeam E N Am Betulaceae 14-24 1974 Malus 'Thunderchild' Thunderchild flowering crab cultivated origin Rosaceae 14-25 2012 Morus alba white mulberry N China Moraceae 14-26 1991 Malus #8797 crabapple cultivated origin Rosaceae 15-1 2014 Salix lucida ssp. lasiandra Pacific willow W N Am Salicaceae 15-2 1967 Syringa reticulata subsp. reticulata Japanese lilac Japan Oleaceae 15-3 15-4 2014 Rhamnus alnifolia alder-leaved buckthorn N Am Rhamnaceae 15-5 2013 Malus sieboldii var. arborescens Siebold's crabapple Japan, Korea Rosaceae 15-6 2014 Malus coronaria sweet crabapple E N Am Rosaceae 15-7 1967 Syringa x prestoniae 'Coral' Coral lilac cultivated origin Oleaceae 15-8 2013 Sorbus vilmorinii Vilmorin's mountainash China Rosaceae 15-9 2009 Elutherococcus senticosus Siberian ginseng NE Asia Araliaceae 15-10 2013 Sorbus x intermedia Swedish whitebeam N Eu Rosaceae 15-11 1967 Syringa vulgaris 'Gloire de Aalsmeer' Glorie de Aalsmeer lilac cultivated origin Oleaceae 15-12 2015 Syringa vulgaris 'Joan Dunbar' Joan Dunbar lilac cultivated origin Oleaceae 15-13 2013 Kalopanax septemlobus castor aralia NE Asia Araliaceae 15-14 2016 Cladrastis kentukea American yellowwood SE USA Fabaceae 15-15 2014 Syringa komarowii subsp. reflexa nodding lilac China Oleaceae 15-16 1981 Syringa SX80-162 lilac cultivated origin Oleaceae 15-17 2018 Quercus prinoides dwarf chinkapin oak E N Am Fagaceae 15-18 1967 Syringa x josiflexa 'Royalty' Royalty lilac cultivated origin Oleaceae 15-19 1967 Syringa x hyacinthiflora 'Swarthmore' Swarthmore lilac cultivated origin Oleaceae 15-20 2012 Syringa oblata Korean lilac China, Korea Oleaceae 15-21 1967 Syringa vulgaris 'Charles X' Charles X lilac cultivated origin Oleaceae 15-22 1967 Syringa x prestoniae 'Desdemona' Desdemona lilac cultivated origin Oleaceae 15-23 1967 Syringa vulgaris 'Marie Legraye' Marie Legraye lilac cultivated origin Oleaceae 15-24 1967 Syringa vulgaris 'Belle de Nancy' Belle de Nancy lilac cultivated origin Oleaceae 15-25 1967 Syringa x hyacinthiflora 'Sister Justena' Sister Justena lilac cultivated origin Oleaceae 15-26 1967 Syringa vulgaris 'Charles Joly' Charles Joly lilac cultivated origin Oleaceae 15-27 1981 Syringa SX80-163 lilac cultivated origin Oleaceae 15-28 2012 Acer spicatum mountain maple E N Am Sapindaceae 15-29 1967 Syringa x prestoniae 'Hiawatha' Hiawatha lilac cultivated origin Oleaceae 15-30 15-31 1967 Syringa x persica Persian lilac cultivated origin Oleaceae 15-32 1979 Syringa SX66-68 lilac cultivated origin Oleaceae 15-33 1967 Syringa vulgaris 'Madam Lemoine' Madam Lemoine lilac cultivated origin Oleaceae 15-34 1967 Hungarian lilac Eu Oleaceae 15-35 1967 Syringa x prestoniae 'Nocturne' Nocturne lilac cultivated origin Oleaceae 15-36 1967 Syringa vulgaris 'Ludwig Speath' Ludwig Spaeth lilac cultivated origin Oleaceae 15-37 1967 Syringa villosa late lilac China Oleaceae 15-38 1969 Syringa x hyacinthiflora 'Assessippi' Assessippi lilac cultivated origin Oleaceae 15-39 1968 Syringa x prestoniae 'Miss Canada' Miss Canada lilac cultivated origin Oleaceae 15-40 1968 Syringa vulgaris 'Ethiopia' Ethiopia lilac cultivated origin Oleaceae 16-1 1968 Quercus macrocarpa burr oak C & E N Am Fagaceae 16-2 1975 Fraxinus pennsylvanica var. austinii Austin green ash E N Am Oleaceae 16-2.1 2018 Liriodendron tulipifera tulip tree E N Am Magnoliaceae 16-3 1969 Quercus coccinea scarlet oak E USA Fagaceae 16-3.1 2016 Cornus alternifolia pagoda dogwood E N Am Cornaceae 16-4 1979 Fraxinus pennsylvaninca 'Patmore' Patmore ash cultivated origin Oleaceae 16-4.1 2018 Zelkova serrata Japanese zelkova Japan, Korea, E CUlmaceae 16-5 1991 Malus #88114 crabapple #88114 cultivated origin Rosaceae 16-5.1 2016 Corylus colurna Turkish hazel SE Eu, SW Asia Betulaceae 16-6 1993 Fraxinus hybrid #8922 ash #8922 cultivated origin Oleaceae 16-7 2012 Larix siberica Siberian larch W Russia Pinaceae 16-7.1 2017 Tetradium danielii Korean evodia Korea, China Rutaceae 16-8 2014 Picea brachytyla Sargent spruce China Pinaceae 16-8.1 16-9 1986 Tilia x flavercens 'Wascana' Wascana basswood cultivated origin Malvaceae 16-9.1 2018 Quercus rubra red oak E N Am Fagaceae 16-10 1968 Sorbus aucuparia 'Rossica' Russian mountainash cultivated origin Rosaceae 16-10.1 2018 Abies concolor white fir W USA, N Mexi Pinaceae 16-11 2017 Larix decidua European larch Eu Pinaceae 8

16-11.1 2017 Pinus densata Gaoshan pine, Sikang pine SW China Pinaceae 16-12 1967 Prunus padus var. commutata 'Dropmore' Dropmore may day cultivated origin Rosaceae 16-12.1 2016 Zanthoxylum americanum northern prickly-ash C – E N Am Rutaceae 16-13 2013 Pinus resinosa red pine E N Am Pinaceae 16-13.1 2016 Rhus typhina staghorn sumac E N Am Anacardiaceae 17-1 2012 Alnus incana subsp. tenuifolia mountain alder W N Am Betulaceae 17-2 2012 Salix sitchensis sitka willow NW N Am Salicaceae 17-3 2017 Stephanandra incisa 'Crispa' cutleaf stephanandra China, Korea, Ja Rosaceae 17-4 1975 Syringa 'Amoena' amoena lilac cultivated origin Oleaceae 17-5 1970 Syringa vulgaris 'Presiden Lincoln' President Lincoln lilac cultivated origin Oleaceae 17-6 1970 Syringa x hyacinthiflora 'Gertrude Leslie' Gertrude Leslie lilac cultivated origin Oleaceae 17-7 2018 Prunus 'Geddes' Geddes plum cultivated origin Rosaceae 17-8 2007 Syringa yunnanensis lilac China Oleaceae 17-9 1974 Syringa reticulata subsp. pekinensis Peking lilac China Oleaceae 17-10 1970 Syringa vulgaris 'Alba Grandiflora' Alba Grandiflora lilac cultivated origin Oleaceae 17-11 1970 Syringa vulgaris 'Primrose' Primrose lilac cultivated origin Oleaceae 17-12 2008 Frangula alnus glossy false-buckthorn Eu, W Asia, N ARhamnaceae 17-13 1978 Syringa x prestoniae 'Helen' Helen lilac cultivated origin Oleaceae 17-14 2013 Celtis reticulata netleaf hackberry W USA, Mex Cannabaceae 17-15 2013 Prunus x skinneri 'Baton Rouge' Baton Rouge plum cultivated origin Rosaceae 17-16 2006 Rhamnus pallasii (erythroxylum? ) narrow-leaved buckthorn Asia Rhamnaceae 17-17 2012 Forsythia viridissima var. koreana Korean greenstem forsythia Korea Oleaceae 17-18 2012 Forsythia ovata 'Northern Gold' Northern Gold Korean forsythia cultivated origin Oleaceae 17-19 1981 Syringa SX80-164 lilac cultivated origin Oleaceae 17-20 2013 Celtis tenuifolia dwarf hackberry E N Am Cannabaceae 17-21 1970 Syringa x hyacinthiflora 'Evangeline' Evangeline lilac cultivated origin Oleaceae 17-22 1970 Syringa meyeri Meyer lilac N China Oleaceae 17-23 1970 Syringa vulgaris 'Hugo Koster' Hugo Koster lilac cultivated origin Oleaceae 17-24 1981 Syringa SX80-165 lilac cultivated origin Oleaceae 17-25 1970 Syringa velutina (S. pubescens subsp. patula ) Manchurian lilac N China, Korea Oleaceae 17-26 1970 Syringa vulgaris 'Montaigne' Montaigne lilac cultivated origin Oleaceae 17-27 1970 Syringa x josiflexa 'Guinevere' Guinevere lilac cultivated origin Oleaceae 17-28 1976 Syringa x hyacinthiflora 'Vauban' Vauban lilac cultivated origin Oleaceae 17-29 1971 Syringa x chinensis 'Saugeana' Saugeana lilac cultivated origin Oleaceae 17-30 2015 Pinus aristata Rocky Mountain bristlecone pine W USA Pinaceae 17-31 1976 Syringa vulgaris 'Jean Mace' Jean Mace lilac cultivated origin Oleaceae 17-32 1976 Syringa vulgaris 'Congo' Congo lilac cultivated origin Oleaceae 17-33 1972 Syringa x hyacinthiflora 'Esther Staley' Esther Staley lilac cultivated origin Oleaceae 17-34 1972 Syringa x prestoniae 'Isabella' Isabella lilac cultivated origin Oleaceae 17-35 17-36 1972 Syringa vulgaris 'Paul Thirion' Paul Thirion lilac cultivated origin Oleaceae 17-37 1972 Syringa vulgaris 'President Loubet' President Loubet lilac cultivated origin Oleaceae 17-38 1972 Syringa vulgaris 'Reamur' Reamur lilac cultivated origin Oleaceae 17-39 1972 Syringa x josiflexa 'Red Wine' Red Wine lilac cultivated origin Oleaceae 18-1 2013 Fraxinus excelsior European ash Eu – W Asia Oleaceae 18-2 2014 Fraxinus quadrangulata blue ash E N Am Oleaceae 18-3 2014 Ulmus thomasii rock elm E N Am Ulmaceae 18-3 2016 Ulmus thomasii rock elm E N Am Ulmaceae 18-4 1966 Prunus americana wild plum C & E N Am Rosaceae 18-5 2013 Acer rubrum red maple E N Am Sapindaceae 18-6 2006 Quercus dentata daimio or Japanese emperor oak NE Asia Fagaceae 18-7 1973 Prunus maackii Amur cherry NE Asia Rosaceae 18-8 2018 Pinus strobus white pine E N Am Pinaceae 18-9 2017 Picea schrenkiana Schrenk's spruce C Asia Pinaceae 18-10 2011 Prunus padus European bird cherry N Eurasia Rosaceae 18-11 1980 Prunus virginiana var. melanocarpa 'Maxi Shubert' Maxi Schubert chokecherry cultivated origin Rosaceae 18-12 2012 Pinus jeffreyi Jeffrey pine W USA Pinaceae 18-13 2017 Pinus nigra subsp. nigra var. caramanica Turkish black pine Turkey, Cypress, Pinaceae 18-14 2006 Gymnocladus dioicus Kentucky coffeetree E N Am Fabaceae 18-15 1968 Maackia amurensis Amur maackia NE Asia Fabaceae 18-15 2014 Maackia amurensis Amur maackia NE Asia Fabaceae 18-16 1973 Shepherdia argentea silver buffaloberry W N Am Rosaceae 18-17 2006 Malus ioensis prairie crabapple E USA Rosaceae 18-18 2015 Larix occidentalis western larch W N Am Pinaceae 18-19 2006 Prunus amurensis x P. cerasus Supervigor cherry cultivated origin Rosaceae 18-20 2014 Pinus leucodermis (heldreichii ) Bosnian pine Balkans, Italy Pinaceae 18-21 1974 Sorbus tianshanica Tian Shan mountainash C Asia Rosaceae 18-21 2018 Sorbus tianshanica Tian Shan mountainash C Asia Rosaceae 18-22 2015 Abies grandis grand fir W N Am Pinaceae 18-23 1967 Picea glauca white spruce N N Am Pinaceae 18-24 1975 Pyrus ussuriensis Ussurian pear NE Asia Rosaceae 18-25 2014 Prunus virginiana var. melanocarpa 'Shubert' Schubert chokecherry cultivated origin Rosaceae 18-26 2018 Prunus virginiana chokecherry N Am Rosaceae 19-1 2014 Salix pedicellaris bog willow N N Am Salicaceae 19-2 1996 Cornus #9119 dogwood #9119 cultivated origin Cornaceae 19-3 19-4 1966 Cornus sericea 'Baileyi' Bailey dogwood cultivated origin Cornaceae 19-5 1966 Cornus bretschneideri Bretschneider dogwood China Cornaceae 19-6 1979 Cornus 'Johnson' Johnson dogwood cultivated origin Cornaceae 19-7 1966 Cornus stolonifera red-osier dogwood N N Am Cornaceae 19-8 1966 Cornus stolonifera var. coloradensis yellowtwig dogwood N N Am Cornaceae 19-9 1966 Cornus stolonifera 'Flaviramea' goldentwig dogwood cultivated origin Cornaceae 19-10 1966 Cornus alba 'Sibirica' Siberian dogwood NE Asia Cornaceae 19-11 2008 Prunus spinosa sloe or blackthorn Eu - W Asia Rosaceae 19-12 2007 Prunus tomentosa Nanking cherry E Asia Rosaceae 19-13 2006 Prunus pumila var. besseyi western sandcherry C N Am Rosaceae 19-14 2013 Juniperus monosperma one-seed juniper SW USA Cupressaceae 9

19-15 1973 Cornus stolonifera 'Isanti' Isanti red-osier dogwood cultivated origin Cornaceae 19-16 2009 Juniperus virginiana eastern redcedar, red juniper E N Am Cupressaceae 19-17 1974 Cornus sericea red-osier dogwood N N Am Cornaceae 19-18 2012 Juniperus chinensis Chinese juniper NE Asia Cupressaceae 19-19 2011 Juniperus osteosperma Utah Juniper SW USA Cupressaceae 19-19 2012 Juniperus osteosperma Utah Juniper SW USA Cupressaceae 19-20 2013 Juniperus scopulorum Rocky Mountain juniper W N Am Cupressaceae 19-21 1966 Prunus tenella dwarf Russian almond SE Eu – W Asia Rosaceae 19-22 1966 Prunus triloba 'Multiplex' double flowering plum cultivated origin Rosaceae 19-23 1966 Cotoneaster lucidus hedge cotoneaster C Asia Rosaceae 19-24 2013 Prunus 'Eileen' Eileen flowering plum cultivated origin Rosaceae 19-25 2014 Prunus virginiana 'Mini Shubert' Mini Shubert chokecherry cultivated origin Rosaceae 19-26 2014 Pinus bungeana lacebark pine China Pinaceae 19-27 2009 Prunus 'Patterson Pride' Patterson Pride plum cultivated origin Rosaceae 19-28 1966 Cotoneaster integerrimus European cotoneaster Eu - W Asia Rosaceae 19-29 1966 Cotoneaster lucidus hedge cotoneaster C Asia Rosaceae 19-30 1966 Cotoneaster melanocarpus blackfruit cotoneaster E Eu – E Asia Rosaceae 19-31 2013 Pinus pumila dwarf Siberian pine NE Asia Pinaceae 19-32 19-33 1970 Cotoneaster tomentosus brickberry cotoneaster Eu Rosaceae 19-34 2014 Pinus albicaulis whitebark pine W N Am Pinaceae 19-35 1976 Syringa 'Minuet' Minuet lilac cultivated origin Oleaceae 19-36 1974 Syringa vulgaris 'Toussaint L'Ouverture' Toussaint L'Ouverture lilac cultivated origin Oleaceae 19-37 2007 Securinega suffruticosa fountain bush E Asia Euphorbiaceae 19-38 2011 Acer campestre field maple Eu - W Asia Sapindaceae 19-39 2010 Philadelphus microphyllus littleleaf mockorange W USA Hydrangeaceae 19-40 2011 Acer glabrum subsp. douglasii Douglas maple W N Am Sapindaceae 19-41 1973 Syringa patula 'Miss Kim' Miss Kim lilac cultivated origin Oleaceae 19-42 2012 Acer pensylvanicum striped maple E N Am Sapindaceae 19-43 2011 Acer pseudosieboldianum Korean maple NE Asia Sapindaceae 19-44 2015 Syringa wolfii Wolf's lilac China, Korea, RuOleaceae 19-45 1973 Syringa 'Cheyenne' Cheyenne lilac cultivated origin Oleaceae 19-46 1973 Syringa x hyacinthiflora 'Blue Hyacinth' Blue Hyacinth lilac cultivated origin Oleaceae 19-47 1973 Syringa reticulata subsp. amurensis Amur lilac NE Asia Oleaceae 19-48 1974 Syringa vulgaris 'Jacques Callot' Jacques Callot lilac cultivated origin Oleaceae 20-1 1971 Picea pungens 'Moerheimi' Moerheim blue spruce cultivated origin Pinaceae 20-2 2013 Thuja occidentalis American arborvitae E N Am Cupressaceae 20-3 1972 Picea abies 'Borealis' Boreal Norway spruce cultivated origin Pinaceae 20-3.1 2016 Prunus japonica Korean cherry China, Korea Rosaceae 20-4 2013 Pinus peuce Macedonian pine SE Eu Pinaceae 20-4.0 2017 Artemisia tridentata big sagebrush W N Am Asteraceae 20-4.1 2017 Pinus mugo subsp. uncinata mountain pine Eu Pinaceae 20-4.2 2018 Robinia hispida bristly locust SE USA Fabaceae 20-5 1966 Abies balsamea balsam fir NE N Am Pinaceae 20-5.1 2017 Abies lasiocarpa var. arizonica corkbark fir SW USA Pinaceae 20-5.2 2017 Chamaebatiaria millefolium fernbush W N Am Rosaceae 20-6 1999 Picea engelmanii Englemann spruce W N Am Pinaceae 20-7 1996 Larix gmelini Dahurian larch E Siberia Pinaceae 20-8 1966 Pinus banksiana jack pine N & E N Am Pinaceae 20-8.1 2016 Rhododendron dauricum Dahurian rhododendron NE Asia Ericaceae 20-9 1966 Pinus cembra Swiss stone pine C Eu Pinaceae 20-10 1966 Pinus contorta var. contorta shore pine coastal W N Am Pinaceae 20-10.1 20-11 2014 Abies nephrolepis Khingan or Manchurian fir NE Asia Pinaceae 20-11.1 20-12 1966 Pinus ponderosa ponderosa pine W N Am Pinaceae 20-12.1 20-13 1966 Pinus sylvestris Scots pine Eurasia Pinaceae 21-1 1984 Rosa 'Cardinette' (or 'Centennial') Cardinette rose cultivated origin Rosaceae 21-2 1966 Rosa 'Athabasca' Athabaska rose cultivated origin Rosaceae 21-3 1997 Rosa N3 7519P101 rose cultivated origin Rosaceae 21-4 1979 Rosa rugosa hybrid Will Alderman rose cultivated origin Rosaceae 21-5 1966 Rosa 'Kilwinning' Kilwinning rose cultivated origin Rosaceae 21-6 1990 Rosa 'Henry Kelsey' Henry Kelsey rose cultivated origin Rosaceae 21-7 1978 Rosa SX76-6 Harrison's yellow rose cultivated origin Rosaceae 21-8 2000 Rosa 'William Baffin' William Baffin rose cultivated origin Rosaceae 21-9 1977 Rosa FO1 SX77-39 rose cultivated origin Rosaceae 21-10 1977 Rosa 'John Cabot' John Cabot rose cultivated origin Rosaceae 21-11 2009 Rosa glauca redleaf rose C Eu Rosaceae 21-12 2007 Rosa pimpinellifoia burnet rose Eu – N Afr Rosaceae 21-13 2018 Dasyphora (Pentaphylloides) parviflora Small-leaved Kurile tea Siberia, C Asia Rosaceae 21-14 1990 Rosa 'John Cabot' John Cabot rose cultivated origin Rosaceae 21-15 1995 Rosa CVX6 Morden Snow Beauty rose (?) cultivated origin Rosaceae 21-16 2018 Halimodendron halodendron salt tree C. Asia to Altai MFabaceae 21-17 1991 Rosa 'Morden Ruby' Morden Ruby rose cultivated origin Rosaceae 21-18 1990 Rosa 'J. P. Connell' J.P. Connell rose cultivated origin Rosaceae 21-19 1966 Rosa 'Therese Bugnet' Therese Bugnet rose cultivated origin Rosaceae 21-20 1984 Rosa 77J3E004 rose cultivated origin Rosaceae 21-21 2018 Caragana korshinskii Korshinsk caragana N. China, MongoFabaceae 21-22 1966 Rosa 'Wasagaming' Wasagaming rose cultivated origin Rosaceae 21-22.1 2014 Rosa rugosa rugosa rose NE Asia Rosaceae 21-23 1990 Rosa 'Prairie Joy' Prairie Joy rose cultivated origin Rosaceae 21-24 2012 Rosa canina dog rose Eu – W Asia, N Rosaceae 21-25 1994 Rosa foliolosa white prairie rose SC USA Rosaceae 21-27 21-28 1990 Rosa 73846001 J5 (Prairie Magic) rose cultivated origin Rosaceae 21-29 1966 Rosa 'Alison' Alison rose cultivated origin Rosaceae 10

21-30 1991 Rosa 'Martin frobisher' Martin Frobisher rose cultivated origin Rosaceae 21-31 1991 Rosa 'Henry Hudson' Henry Hudson rose cultivated origin Rosaceae 21-32 1966 Rosa 'Beauty of Dropmore' Beauty of Dropmore rose cultivated origin Rosaceae 21-33 1991 Rosa 'Jens Munk' Jens Munk rose cultivated origin Rosaceae 21-34 2017 Shepherdia canadensis Canada buffaloberry W & N N Am Eleagnaceae 21-35 2013 Sibiraea laevigata sibiraea E Asia, SE Eu Rosaceae 21-36 2018 Eleagnus sp. eleagnus Eleagnaceae 21-37 2013 Buxus microphylla var. koreana Korean boxwood Korea Buxaceae 21-38 2017 Sedum populifolium Poplar-leaved sedum Siberia Crassulaceae 21-38.1 2013 Hydrangea heteromalla Himilayan hydrangea China, HimilayasHydrangeaceae 21-39 2014 Weigea middendorffiana weigela NE Asia Caprifoliaceae 21-39.1 2014 Acer ukurunduense Ukurundu maple NE Asia Sapindaceae 21-40 2007 Hydrangea paniculata panicled hydrangea NE Asia Hydrangeaceae 21-40 2009 Hydrangea paniculata panicled hydrangea NE Asia Hydrangeaceae 21-41 1977 Syringa x prestoniae 'Calphurnia' Calphurnia lilac cultivated origin Oleaceae 21-42 1981 Syringa SX80-166 lilac cultivated origin Oleaceae 21-43 1966 Rosa gallica grandiflora Alika rose cultivated origin Rosaceae 21-44 1977 Syringa vulgaris 'Monge' Monge lilac cultivated origin Oleaceae 21-45 1981 Syringa SX80-167 lilac cultivated origin Oleaceae 21-46 2014 Linnea borealis twinflower N Am, Europe, ACaprifoliaceae 21-47 1981 Syringa SX80-168 lilac cultivated origin Oleaceae 21-48 1981 Syringa SX80-169 lilac cultivated origin Oleaceae 22-1 2018 Quercus alba white oak E N Am Fagaceae 22-1.1 22-2 1967 Picea pungens Colorado spruce W USA Pinaceae 22-2.1 2017 Pinus siberica Siberian pine N Asia Pinaceae 22-3 1979 Picea abies 'Maxwellii' Maxwell spruce cultivated origin Pinaceae 22-3.1 2018 Sorbus aria common whitebeam Eu - W Asia Rosaceae 22-4 1969 Picea pungens 'Glauca' Colorado blue spruce cultivated origin Pinaceae 22-4.2 22-4.3 2017 Jamesia americana waxflower SW USA Hydrangeaceae 22-5 2006 Pinus tabulaeformis Chinese red pine China Pinaceae 22-5.0 2017 Caragana bungei Bunge's caragana Mongolia, Russi Fabaceae 22-5.1 2016 Cotinus obovatus American smoketree S Central USA Anacardiaceae 22-5.2 2017 Sibiraea altaiensis Sibiraea Russia, Kazakhs Rosaceae 22-6 2006 Abies lasiocarpa subalpine fir W N Am Pinaceae 22-7 1966 Picea glauca var. densata Black Hills white spruce C USA Pinaceae 22-8 1967 Picea asperata Chinese or dragon spruce China Pinaceae 22-8.1 2016 Platycladus orientalis biota or Chinese arborvitae China Cupressaceae 22-9 2011 Larix decidua European larch Eu Pinaceae 22-9.1 22-10 1968 Picea pungens 'Hoopsii' Hoopsi blue spruce cultivated origin Pinaceae 22-11 1968 Salix pentandra laurel-leaved willow Eu - W Asia Salicaceae 22-12 1968 Salix 'Blakley's Weeping' Blakley's Weeping willow cultivated origin Salicaceae 22-13 1980 Pinus strobus white pine E N Am Pinaceae 22-13.1 2018 Comptonia peregrina sweetfern E N Am Myricaceae 23-1 23-2 2010 Hippophae rhamnoides seabuckthorn (female) Eu – C Asia Eleagnaceae 23-3 2008 Hippophae rhamnoides seabuckthorn (male) Eu – C Asia Eleagnaceae 23-4 1966 Caragana frutex 'Globosa' Globe caragana cultivated origin Fabaceae 23-5 2016 Rubus parviflorus thimbleberry W N Am Rosaceae 23-6 23-7 1966 Caragana frutex 'Globosa' Globe caragana cultivated origin Fabaceae 23-8 2013 Crataegus sp. (floribunda?) hawthorn Rosaceae 23-9 2012 Caragana arborescens 'Sutherland' Sutherland caragana cultivated origin Fabaceae 23-10 23-11 1967 Caragana brevispina shortspine carragana C Asia Fabaceae 23-12 2018 Philadelphus lewisii Lewis’ mockorange W N Am Hydrangeaceae 23-13 23-14 2014 Caragana microphylla littleleaf peashrub E Asia Fabaceae 23-15 1968 Caragana frutex shrubby caragana Eu – C Asia Fabaceae 23-16 2014 Caragana spinosa caragana C - NE Asia Fabaceae 23-17 1970 Caragana aurantiaca Koehne caragana C Asia Fabaceae 23-18 2018 Microbiota decussata microbiota or Russian arborvitae Ussuri region, RuCupressaceae 23-19 2015 Caragana arborescens Siberian peashrub C - NE Asia Fabaceae 23-20 2002 Rosa laxa hybrida rose cultivated origin Rosaceae 23-21 2002 Rosa Kusui rose cultivated origin Rosaceae 23-22 2002 Rosa Kasu rose cultivated origin Rosaceae 23-23 2010 Rosa acicularis prickly rose N N Am - N Eur Rosaceae 23-24 2018 Sorbus sitchensis western mountainash NW N Am Rosaceae 23-25 2017 Rosa majalis cinnamon rose N Eurasia Rosaceae 23-26 2018 Rosa arkansana prairie rose C N Am Rosaceae 23-27 1973 Rosa nitida shining rose NE N Am Rosaceae 23-28 1999 Rosa 'Frontenac' Frontenac rose cultivated origin Rosaceae 23-29 1968 Rosa 'Victory Year' Victory Year rose cultivated origin Rosaceae 23-30 1981 Rosa 'Morden Centennial' Morden Centennial rose cultivated origin Rosaceae 23-31 1990 Rosa 72846001 J5 (Prairie Magic) cultivated origin Rosaceae 23-32 1980 Rosa 'Hazeldean' Hazeldean rose cultivated origin Rosaceae 23-33 23-34 2015 Rosa 'Kakwa' Kakwa rose cultivated origin Rosaceae 23-35 1966 Sorbaria sorbifolia Ural falsespirea C & E Asia Rosaceae 23-36 23-37 1970 Sorbaria 'Aurora' Aurora falsespirea cultivated origin Rosaceae 23-38 2012 Rosa xanthina yellow rose N China, Korea Rosaceae 23-39 1967 Rosa 'Escara Vash' Escara Vash rose cultivated origin Rosaceae 23-40 1967 Rosa 'Fanny Heath' Fanny Heath rose cultivated origin Rosaceae 23-41 2006 Rosa villosa (pomifera ) apple rose Eu - W Asia Rosaceae 11

23-42 1999 Rosa 'George Vancouver' George Vancouver rose cultivated origin Rosaceae 23-43 1972 Rosa 'Marie Bugnet' Marie Bugnet rose cultivated origin Rosaceae 23-44 1999 Rosa 'Louis Joillet' Louis Joillet rose cultivated origin Rosaceae 23-45 2012 Artemesia abrotatum southern wormwood Eu Asteraceae 23-46 2011 Empetrum nigrum black crowberry N N Am – N Asi Ericaceae 23-47 23-48 2017 Artemesia cana silver sagebrush W N Am Asteraceae 24-1 2009 Salix nigra black willow E N Am Salicaceae 24-1.1 2011 Salix sp. willow Salicaceae 24-2 1966 Salix acutifolia sharpleaf willow C & E Asia Salicaceae 24-3 2007 Acer platanoides Norway maple Eu, W Asia Sapindaceae 24-3.1 2018 Acer grandidentatum bigtooth or canyon maple W USA, Mex Sapindaceae 24-4 1994 Acer ginnala x tataricum maple cultivated origin Sapindaceae 24-4.1 2009 Acer triflorum three-flowered maple E Asia Sapindaceae 24-5 1966 Salix alba 'Chermesina' redstem willow cultivated origin Salicaceae 24-5.1 2009 Acer mandshuricum Manchurian maple E Asia Sapindaceae 24-6 1993 Acer tataricum Tatarian maple Eu, W Asia Sapindaceae 24-7 2006 Pinus sylvestris var. mongolica Mongolian pine E Asia Pinaceae 24-7.0 2017 Amorpha canescens leadplant C N Am Fabaceae 24-7.1 2009 Picea abies 'Christina' Christina columnar spruce cultivated origin Pinaceae 24-7.2 2017 Cercocarpus montanus Alder- cercocarpus W USA, N Mexi Rosaceae 24-8 2013 Pinus siberica Siberian pine Siberia Pinaceae 24-8.0 2017 Juniperus siberica (Juniperus communis var. saxatilisalpine juniper C Asia Cupressaceae 24-8.1 2006 Pinus sylvestris 'Fastigata' sentinel pine cultivated origin Pinaceae 24-9 2018 Tilia maximowicziana linden Japan, Kuril Is. Malvaceae 24-9.1 2013 Acer truncatum Shantung maple N China Sapindaceae 24-10 2013 Larix olgensis Olga Bay larch NE Asia Pinaceae 24-10.1 2006 Pinus mugo ssp. uncinata mountain pine W Eu Pinaceae 24-11 2010 Pinus nigra Austrian pine C & SE Eu Pinaceae 24-11.1 2014 Pinus armandii Armand's or Chinese white pine China, Burma Pinaceae 24-12 2015 Pinus sp. pine Pinaceae 24-12.1 2014 Pinus strobiformis southwestern white pine S USA, Mexico Pinaceae 24-13 2009 Quercus alba white oak E N Am Fagaceae 24-13.1 1966 Elaeagnus commutata silverberry or wolf willow W- C N Am Eleagnaceae 25-1 1990 Populus 78101 'Prairie Sky' Prairie Sky poplar cultivated origin Salicaceae 25-1.1 25-2 1972 Populus x acuminata Rydberg's smooth bark cottonwood C N Am Salicaceae 25-3 1993 Fraxinus hybrid 8921 Ash #8921 cultivated origin Oleaceae 25-3.1 2012 Pinus flexilis limber pine W N Am Pinaceae 25-4 2008 Pinus koraiensis Korean pine NE Asia Pinaceae 25-4.1 2011 Thuja koraiensis Korean arborvitae China, Korea Cupressaceae 25-5 1974 Populus 44-55 Hill (Walker) poplar cultivated origin Salicaceae 25-5.1 1967 Prunus virginiana var. melanocarpa 'Copper Shubert Copper Shubert chokecherry cultivated origin Rosaceae 25-6 1985 Populus columnar 77312 columnar poplar #77312 cultivated origin Salicaceae 25-6.1 2014 Elaeagnus angustifolia Russian-olive W & C Asia Eleagnaceae 25-7 2009 Abies holophylla needle fir E Asia Pinaceae 25-7.1 2013 Picea omorika Serbian spruce SE Eu Pinaceae 25-8 1968 Populus deltoides plains cottonwood C N Am Salicaceae 25-9 1975 Populus trichocarpa western balsam poplar or black cottonwood W N Am Salicaceae 25-9.1 2014 Quercus gambelii Gambel oak SW USA Fagaceae 25-10 2007 Pinus contorta var. latifolia lodgepole pine W N Am Pinaceae 25-10.1 2009 Larix laricina tamarack N & E N Am Pinaceae 25-11 1995 Populus 'Manitou' Manitou poplar cultivated origin Salicaceae 25-12 1996 Populus 'Mann' Mann poplar cultivated origin Salicaceae