Akebia

Akebia quinata (Five-leaf Akebia )

Callicarpa

Callicarpa dichotoma 'Albifructus' (White Fruited Beautyberry)

Chrysothamnus

Chrysothamnus viscidiflorus (Green Rabbitbrush )

Clematis

Clematis montana var. rubens (Pink Anemone Clematis)
Clematis tangutica (Golden Clematis)
Clematis terniflora (Sweet Autumn Clematis, )
Clematis viticella (Italian Clematis)
Clematis viticella 'Huldine' (Huldine Italian Clematis )
Clematis viticella 'Polish Spirit' (Polish Spirit Italian Clematis)

Cornus

Cornus 'Eddies White Wonder' (Eddie's White Wonder Dogwood)
Cornus alba (Tatarian Dogwood )
Cornus alternifolia (Pagoda Dogwood)
Cornus amomum (Silky Dogwood)
Cornus drummondii (Rough-leaved Dogwood)
Cornus racemosa (Gray Dogwood )
Cornus sericea (Redosier Dogwood )
Cornus sericea subsp. occidentalis (Western Dogwood)
Cornus sericea subsp. sericea (Redosier Dogwood)
Cornus sericea subsp. sericea 'Argenteo-marginata' (Variegated Dogwood )
Cornus sericea subsp. sericea 'Elegantissima' (Variegated Tatarian Dogwood )
Cornus sericea subsp. sericea 'Flaviramea' (Golden Twig Dogwood )
Cornus sericea subsp. sericea 'Hessei' (Siberian Dogwood )
Cornus sericea subsp. sericea Ivory Halo™ (Ivory Halo Dogwood )

Daphne

Daphne genkwa (Lilac Daphne)

Elaeagnus

Elaeagnus angustifolia (Russian-olive)

Hovenia

Hovenia dulcis (Japanese Raisintree )

Itea

Itea virginica (Sweetspire )
Itea virginica 'Henrys Garnet' (Henry's Garnet Sweetspire)
Itea virginica Little Henry® (Little Henry Sweetspire)

Magnolia

Magnolia campbellii (Campbell's Magnolia )

Oemleria

Oemleria cerasiformis (Indian Plum )

Oxydendrum

Oxydendrum arboreum (Sourwood )

Philadelphus

Philadelphus × virginalis  (Virginal Mockorange)

Pterostyrax

Pterostyrax hispida (Epaulette Tree )

Purshia

Purshia stansburiana (Cliffrose)

Rhododendron (defines evaluations)

Rhododendron serpyllifolium var. albifolrum (White Wild Thyme Azalea)

Rhus

Rhus aromatica (Fragrant Sumac)
Rhus aromatica 'Gro-Low' (Gro-Low Fragrant Sumac)

Rosa

Rosa nutkana (Nootka Rose )

Salix

Salix magnifica (Magnolia-leaf Willow )

Sorbus

Sorbus koehneana (Chinese Mountain Ash )
Sorbus poteriifolia (Mountain Ash)

Styrax

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

Symphoricarpos

Symphoricarpos albus (Common Snowberry)
Symphoricarpos albus 'Variegatus' (Variegated Snowberry)
Symphoricarpos × doorenbosii (Doorenbos Snowberry )
Symphoricarpos mollis (Spreading Snowberry)
Symphoricarpos rotondifolius (Roundleaf Snowberry)

Toona

Toona sinensis (Chinese Toon )

Wisteria

Wisteria floribunda (Japanese Wisteria)
Wisteria sinensis (Chinese Wisteria)