Prunus

Prunus 'Newport' (Newport Flowering Plum)
Prunus Snow Fountains® (Snow Fountains Weeping Cherry )
Prunus 'Snow Goose' (Snow Goose Flowering Cherry)
Prunus 'Tai-Haku' (Tai-Haku Flowering Cherry )
Prunus americana (Wild Plum )
Prunus armeniaca (Apricot)
Prunus armeniaca 'Goldcot' (Goldcot Apricot)
Prunus avium (Sweet Cherry)
Prunus caroliniana (Carolina Cherrylaurel )
Prunus cerasifera (Cherry Plum)
Prunus cerasifera 'Atropurpurea' (Atropurpurea Flowering Plum)
Prunus emarginata (Bitter Cherry )
Prunus ilicifolia (Hollyleaf Cherry )
Prunus laurocerasus (Cherry Laurel )
Prunus lusitanica (Portuguese Cherry Laurel .)
Prunus maackii (Amur Chokecherry )
Prunus mume 'Contorta' (Contorta Japanese Flowering Apricot)
Prunus mume 'Trumpet' (Trumpet Japanese Flowering Apricot)
Prunus padus (European Birdcherry )
Prunus serotina (Black Cherry )
Prunus serrula (Birchbark Cherry )
Prunus serrulata (Japanese Flowering Cherry )
Prunus serrulata 'Mt. Fuji' (Mt. Fuji Flowering Cherry)
Prunus serrulata 'Shiro-fugen' (Shiro-fugen Flowering Cherry)
Prunus serrulata 'Shogetsu' (Shogetsu Flowering Cherry)
Prunus serrulata 'Ukon' (Ukon Flowering Cherry)
Prunus subcordata (Klamath Plum )
Prunus subhirtella (Higan Cherry)
Prunus subhirtella 'Pendula' (Weeping Higan Cherry)
Prunus subhirtella var. autumnalis (Autumn Flowering Higan Cherry)
Prunus virginiana 'Canada Red' (Canada Red Chokecherry)
Prunus virginiana var. virginiana (Common Chokecherry)
Prunus × yedoensis (Yoshino Cherry )
Prunus × yedoensis 'Akebono' (Akebono Yoshino Cherry)

Pterostyrax

Pterostyrax hispida (Epaulette Tree )

Purshia

Purshia stansburiana (Cliffrose)

Pyrus

Pyrus calleryana (Callery Pear)
Pyrus calleryana 'Autumn Blaze' (Autumn Blaze Callery Pear)
Pyrus calleryana Chanticleer® (Chanticleer Pear)
Pyrus fauriei Korean Sun™ (Korean Sun Pear)
Pyrus salicifolia 'Pendula' (Weeping Willow-leaved Pear)

Quillaja

Quillaja saponaria (Soap-bark Tree )

Rhododendron (defines evaluations)

Rhododendron 'Argosy' (Argosy Rhododendron)
Rhododendron arboreum subsp. cinnamomeum (Cinnamon Rhododendron)
Rhododendron irroratum (Irroratum Rhododendron)
Rhododendron macrophyllum (Western Rhododendron)

Rhus

Rhus ovata (Sugar Bush)

Salix

Salix caprea 'Kilmarnock' (Kilmarnock Willow)

Sorbus

Sorbus alnifolia (Korean Mountain Ash )
Sorbus aria (Whitebeam Mountain Ash)
Sorbus yunan (Sorbus yunan (no English common name))

Stewartia

Stewartia koreana (Korean Stewartia)
Stewartia monadelpha (Tall Stewartia)
Stewartia pseudocamellia (Japanese Stewartia)
Stewartia rostrata (Rostrata Stewartia)
Stewartia serrata (Sawtooth Stewartia)

Styrax

Styrax japonicus (Japanese Snowbell)
Styrax japonicus 'Evening Light' (Evening Light Japanese Snowbell)
Styrax obassia (Fragrant Snowbell)

Syringa

Syringa pekinensis (Peking Lilac )
Syringa reticulata (Japanese Tree Lilac )

Tasmannia

Tasmannia lanceolata (Mountain Pepper)

Umbellularia

Umbellularia californica (Oregon Myrtle )

Viburnum

Viburnum awabuki (Sweet Viburnum)
Viburnum lentago (Nannyberry )
Viburnum rufidulum (Rusty Blackhaw Viburnum )
Viburnum rufidulum 'Royal Guard' (Royal Guard Rusty Blackhaw Viburnum )
Viburnum trilobum (American Cranberrybush Viburnum)