Cistus

Cistus 'Elma' (Elma Rockrose)
Cistus 'Grayswood Pink' (Grayswood Pink Rockrose)
Cistus 'Snow Fire' (Snow Fire Rockrose)
Cistus 'Victor Reiter' (Victor Reiter Rockrose)
Cistus × corbariensis (White Rockrose)
Cistus × crispatus 'Warley Rose' (Warley Rose Rockrose)
Cistus × dansereaui 'Decumbens' (Decumbens Rockrose)
Cistus × florentinus 'Fontfroide' (Fontfroide Rockrose)
Cistus ladanifer (Common Gum Rockrose)
Cistus × oblongifolius (Oblongifolius Rockrose)
Cistus × pulverulentus 'Sunset' (Sunset Rockrose)
Cistus × purpureus (Orchid Rockrose)

Clethra

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

Coleogyne

Coleogyne ramosissima (Blackbrush)

Cornus

Cornus alba (Tatarian Dogwood )
Cornus alternifolia (Pagoda Dogwood)
Cornus amomum (Silky Dogwood)
Cornus capitata (Evergreen 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 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 congestus (Pyrenees Cotoneaster)
Cotoneaster divaricatus (Spreading Cotoneaster)
Cotoneaster franchetii (Franchet Cotoneaster)
Cotoneaster horizontalis (Rockspray Cotoneaster )
Cotoneaster intergerrimus (European Cotoneaster)
Cotoneaster lacteus (Parney Cotoneaster)
Cotoneaster lucidus (Hedge Cotoneaster)
Cotoneaster microphyllus (Littleleaf Cotoneaster)
Cotoneaster multiflorus (Many-flowered Cotoneaster)
Cotoneaster salicifolius (Willowleaf Cotoneaster)
Cotoneaster salicifolius 'Autumn Fire' (Autumn Fire Cotoneaster)
Cotoneaster simonsii (Simons Cotoneaster)
Cotoneaster × suecicus 'Coral Beauty' (Coral Beauty Cotoneaster)

Crataegus

Crataegus germanica (Medlar)

Crinodendron

Crinodendron hookerianum (Chilean Lantern Tree)

Cydonia

Cydonia oblonga (Quince)

Daphne

Daphne 'Lawrence Crocker' (Lawrence Crocker Daphne)
Daphne × burkwoodii (Burkwood Daphne)
Daphne caucasica (Caucasian Daphne)
Daphne genkwa (Lilac Daphne)
Daphne laureola (Spurge Laurel)
Daphne mezereum (February Daphne )
Daphne odora (Fragrant Daphne )

Daphniphyllum

Daphniphyllum macropodum (False Daphne )

Deutzia

Deutzia gracilis (Slender Deutzia)
Deutzia gracilis 'Nikko' (Nikko Slender Deutzia)
Deutzia × kalmiiflora (Kalmia Flowered Deutzia)
Deutzia × lemoinei (Lemoine Deutzia)
Deutzia paviflora var. amurensis (Amur Deutzia)
Deutzia scabra (Fuzzy Deutzia)
Deutzia scabra 'Flore-pleno' (Flore-pleno Fuzzy Deutzia)
Deutzia scabra 'Godsall Pink' (Godsall Pink Fuzzy Deutzia)

Distylium

Distylium × 'Vintage Jade' (Vintage Jade Evergreen Witch Hazel)

Drimys

Drimys winteri (Winter's Bark )

Edgeworthia

Edgeworthia chrysantha (Paper Bush )

Elaeagnus

Elaeagnus umbellata (Autumn Elaeagnus )

Encelia

Encelia farinosa (Brittlebush )

Enkianthus

Enkianthus campanulatus (Redvein Enkianthus)

Ephedra

Ephedra fasciculata (Arizona Ephedra )
Ephedra viridis (Green Mormon Tea )

Erica

Erica × darleyensis (Darley Heath )

Eriogonum

Eriogonum fasciculatum (California Buckwheat )

Escallonia

Escallonia 'Compakta' (Compakta Escallonia)
Escallonia laevis (Pink Escallonia)
Escallonia laevis 'Gold Brian' (Gold Brian Escallonia)
Escallonia × langleyensis (Langley Escallonia)
Escallonia × langleyensis 'Apple Blossom' (Apple Blossom Escallonia)
Escallonia × langleyensis 'Pride of Donard' (Pride of Donard Escallonia)

Euonymus

Euonymus atropurpureus (Eastern Wahoo)
Euonymus japonicus (Japanese Euonymus )
Euonymus × kiautschovicus 'Manhattan' (Manhattan Spreading Euonymus)

Exochorda

Exochorda × macrantha 'The Bride' (The Bride Pearlbush)
Exochorda racemosa (Common Pearlbush)

Feijoa

Feijoa sellowiana (Pineapple Guava )

Fontanesia

Fontanesia philliraeoides subsp. fortunei (Fontanesia)

Forestiera

Forestiera pubescens (Desert Olive)

Forsythia

Forsythia × intermedia (Border Forsythia)