Abelia

Abelia × 'Edward Goucher' (Edward Goucher Abelia)

Abeliophyllum

Abeliophyllum distichum (White Forsythia )

Acer

Acer opalus subsp. obtusatum (Bosnian Maple)

Adenium

Adenium obesum (Desert Rose )

Alnus

Alnus alnobetula subsp. sinuata (Sitka Alder )
Alnus incana subsp. tenuifolia (Thinleaf Alder )

Amelanchier

Amelanchier alnifolia (Western Serviceberry )
Amelanchier alnifolia 'Regent' (Regent Serviceberry )
Amelanchier canadensis (Shadblow )
Amelanchier × grandiflora (Apple Serviceberry)
Amelanchier × grandiflora Autumn Brilliance® (Autumn Brilliance Serviceberry)
Amelanchier × grandiflora 'Forest Prince' (Forest Prince Serviceberry)
Amelanchier laevis (Allegheny Serviceberry )

Aronia

Aronia arbutifolia (Red Chokeberry)
Aronia arbutifolia 'Brilliantissima' (Brilliant Red Chokeberry)
Aronia melanocarpa (Black Chokeberry)

Baccharis

Baccharis pilularis (Coyote Bush )

Bauhinia

Bauhinia variegata (Orchid Tree )

Berberis

Berberis Emerald Carousel™ (Emerald Carousel Barberry)
Berberis thunbergii (Japanese Barberry)
Berberis thunbergii 'Aurea' (Golden Japanese Barberry)
Berberis thunbergii Golden Nugget™ (Golden Nugget Barberry)
Berberis thunbergii 'Kobold' (Kobold Japanese Barberry)
Berberis thunbergii Sunsation™ (Sunsation Barberry)

Buddleia

Buddleia × 'Blue Chip' (Blue Chip Buddleia)
Buddleia alternifolia (Alternate-leaf Butterfly Bush )
Buddleia globosa (Orange Butterfly Bush )
Buddleia × weyeriana 'Honeycomb' (Honeycomb Butterfly Bush)

Callicarpa

Callicarpa americana (American Beautyberry )
Callicarpa bodinieri 'Profusion' (Profusion Beautyberry)
Callicarpa dichotoma (Purple Beautyberry)
Callicarpa dichotoma 'Albifructus' (White Fruited Beautyberry)
Callicarpa japonica (Japanese Beautyberry)

Calycanthus

Calycanthus × 'Aphrodite' (Aphrodite Sweetshrub)
Calycanthus floridus (Carolina Allspice )
Calycanthus occidentalis (Western Spicebush )
Calycanthus × raulstonii 'Hartlage Wine' (Hartlage Wine Sweetbush )

Ceanothus

Ceanothus × delilianus 'Henri Desfosse' (Henri Desfosse Ceanothus)
Ceanothus integerrimus (Deer Brush)
Ceanothus sanguineus (Redstem Ceanothus )

Cephalanthus

Cephalanthus occidentalis (Buttonbush )

Cercis

Cercis canadensis 'Forest Pansy' (Forest Pansy Redbud)
Cercis canadensis var. alba (White Flowered Redbud)
Cercis canadensis var. mexicana (Mexican Redbud)
Cercis canadensis var. texensis 'Oklahoma' (Oklahoma Redbud)
Cercis chinensis (Chinese Redbud)
Cercis chinensis 'Avondale' (Avondale Chinese Redbud)
Cercis occidentalis (Western Redbud )
Cercis siliquastrum (Judus Tree )

Chaenomeles

Chaenomeles speciosa (Flowering Quince)

Chilopsis

Chilopsis linearis (Desert Willow )

Chimonanthus

Chimonanthus praecox (Fragrant Wintersweet)

Chionanthus

Chionanthus retusus (Chinese Fringetree)
Chionanthus virginicus (White Fringetree)

Chrysothamnus

Chrysothamnus viscidiflorus (Green Rabbitbrush )

Clethra

Clethra alnifolia (Summersweet )
Clethra alnifolia 'Ruby Spice' (Ruby Spice Summersweet )

Cornus

Cornus alba (Tatarian Dogwood )
Cornus alternifolia (Pagoda Dogwood)
Cornus amomum (Silky Dogwood)
Cornus drummondii (Rough-leaved Dogwood)
Cornus florida (Flowering Dogwood )
Cornus kousa (Kousa Dogwood )
Cornus kousa 'Radiant Rose' (Radiant Rose Dogwood)
Cornus mas (Corneliancherry Dogwood)
Cornus officinalis (Japanese Cornelian Dogwood )
Cornus racemosa (Gray Dogwood )
Cornus sanguinea (Bloodtwig Dogwood)
Cornus sanguinea 'Midwinter Fire' (Midwinter Fire Dogwood)
Cornus sericea (Redosier Dogwood )
Cornus sericea subsp. occidentalis (Western Dogwood)
Cornus sericea subsp. sericea (Redosier Dogwood)
Cornus sericea subsp. sericea 'Flaviramea' (Golden Twig Dogwood )
Cornus sericea subsp. sericea 'Hessei' (Siberian Dogwood )

Corylopsis

Corylopsis (Winterhazel)
Corylopsis pauciflora (Buttercup Winterhazel)
Corylopsis spicata (Spike Winterhazel)

Corylus

Corylus americana (American Hazel )
Corylus avellana (Hazelnut )
Corylus avellana 'Contorta' (Contorted Filbert )
Corylus avellana 'Rote Zeller' (Rote Zeller Hazelnut)

Cotinus

Cotinus coggygria (Common Smoketree )
Cotinus coggygria Golden Spirit™ (Golden Spirit Smoketree)
Cotinus coggygria 'Royal Purple' (Royal Purple Smoketree)
Cotinus obovatus (American Smoketree )

Cotoneaster

Cotoneaster bullatus (Hollyberry Cotoneaster)
Cotoneaster divaricatus (Spreading Cotoneaster)
Cotoneaster horizontalis (Rockspray Cotoneaster )
Cotoneaster intergerrimus (European Cotoneaster)
Cotoneaster lucidus (Hedge Cotoneaster)
Cotoneaster multiflorus (Many-flowered Cotoneaster)
Cotoneaster simonsii (Simons Cotoneaster)

Crataegus

Crataegus columbiana (Columbia Hawthorn)
Crataegus douglasii (Douglas Hawthorn )
Crataegus germanica (Medlar)
Crataegus laevigata (English Hawthorn )
Crataegus monogyna 'Flexuosa' (Contorted Singleseed Hawthorn)

Cydonia

Cydonia oblonga (Quince)

Daphne

Daphne × burkwoodii (Burkwood Daphne)
Daphne caucasica (Caucasian Daphne)