Abeliophyllum

Abeliophyllum distichum (White Forsythia )

Adansonia

Adansonia digitata (Baobab)

Adenium

Adenium obesum (Desert Rose )

Adenocarpus

Adenocarpus decorticans (Silver Broom )

Aesculus

Aesculus californica (California Buckeye )
Aesculus × carnea (Red Flowering Horsechestnut)
Aesculus × carnea 'O'Neill Red' (O'Neill Red Horsechestnut )
Aesculus chinensis (Chinese Horsechestnut)
Aesculus flava (Yellow Buckeye )
Aesculus glabra (Ohio Buckeye )
Aesculus glabra var. arguta (Texas Buckeye )
Aesculus hippocastanum (Horsechestnut)
Aesculus hippocastanum 'Baumannii' (Double Horsechestnut )
Aesculus parviflora (Bottlebrush Buckeye)
Aesculus pavia (Red Buckeye)
Aesculus pavia 'Humilis' (Dwarf Red Buckeye)
Aesculus sylvatica (Painted Buckeye )

Albizia

Albizia julibrissin (Silk Tree )
Albizia julibrissin 'Summer Chocolate' (Summer Chocolate Silk Tree)

Alnus

Alnus alnobetula subsp. sinuata (Sitka Alder )
Alnus cordata (Italian Alder)
Alnus glutinosa (Common Alder )
Alnus incana subsp. tenuifolia (Thinleaf Alder )
Alnus japonica (Japanese Alder)
Alnus rhombifolia (White Alder)
Alnus rubra (Red Alder )

Amorpha

Amorpha nana (Dwarf Wild Indigo )

Argyrocytisus

Argyrocytisus battandieri (Pineapple Broom )

Baccharis

Baccharis pilularis (Coyote Bush )

Buddleia

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

Calycanthus

Calycanthus floridus (Carolina Allspice )
Calycanthus × raulstonii 'Hartlage Wine' (Hartlage Wine Sweetbush )

Caragana

Caragana arborescens (Siberian Peashrub )
Caragana arborescens 'Lorbergii' (Lorberg Peashrub )
Caragana frutex 'Globosa' (Globe Russian Peashrub )
Caragana pygmaea (Pygmy Peashrub )

Carpinus

Carpinus japonica (Japanese Hornbeam)

Castanea

Castanea dentata (American Chestnut)
Castanea mollissima (Chinese Chestnut)
Castanea sativa (European Chestnut )

Catalpa

Catalpa bignonioides (Southern Catalpa )
Catalpa × erubescens 'Purpurea' (Purple Catalpa)
Catalpa speciosa (Northern Catalpa )

Ceanothus

Ceanothus integerrimus (Deer Brush)
Ceanothus sanguineus (Redstem Ceanothus )

Ceiba

Ceiba speciosa (Floss Silk Tree)

Cercis

Cercis canadensis (Eastern Redbud)
Cercis canadensis 'Forest Pansy' (Forest Pansy Redbud)
Cercis canadensis 'Ruby Falls' (Ruby Falls Weeping 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 )

Chimonanthus

Chimonanthus praecox (Fragrant Wintersweet)

Chrysothamnus

Chrysothamnus viscidiflorus (Green Rabbitbrush )

Cladrastis

Cladrastis kentukea (American Yellowwood)

Clethra

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

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 'Red Dragon' (Red Dragon Hazelnut)
Corylus avellana 'Rote Zeller' (Rote Zeller Hazelnut)

Crataegus

Crataegus germanica (Medlar)

Cytisus

Cytisus scoparius (Scotch Broom )
Cytisus scoparius 'Moonlight' (Moonlight Scotch Broom)

Dasiphora

Dasiphora fruticosa (Shrubby Cinquefoil )

Davidia

Davidia involucrata (Dove Tree )

Delonix

Delonix regia (Royal Poinciana)

Deutzia

Deutzia gracilis (Slender Deutzia)
Deutzia gracilis 'Nikko' (Nikko Slender Deutzia)
Deutzia × kalmiiflora (Kalmia Flowered 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)

Encelia

Encelia farinosa (Brittlebush )

Enkianthus

Enkianthus campanulatus (Redvein Enkianthus)

Exochorda

Exochorda racemosa (Common Pearlbush)

Fontanesia

Fontanesia philliraeoides subsp. fortunei (Fontanesia)

Forsythia

Forsythia × intermedia (Border Forsythia)

Franklinia

Franklinia alatamaha (Franklin Tree )

Fraxinus

Fraxinus ornus (Flowering Ash)
Fraxinus sieboldiana (Siebold Ash, )

Halesia

Halesia carolina (Carolina Silverbell )

Hamamelis

Hamamelis × intermedia 'Arnold Promise' (Arnold Promise Witchhazel)
Hamamelis × intermedia 'Diane' (Diane Witchhazel)
Hamamelis × intermedia 'Jelena' (Jelena Witchhazel)
Hamamelis × intermedia 'Primivera' (Primivera Witchhazel)
Hamamelis vernalis (Vernal Witchhazel )
Hamamelis virginiana (Common Witchhazel)