Adansonia

Adansonia digitata (Baobab)

Adenium

Adenium obesum (Desert Rose )

Adenocarpus

Adenocarpus decorticans (Silver Broom )

Akebia

Akebia quinata (Five-leaf Akebia )

Albizia

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

Aleurites

Aleurites moluccanus (Candelnut)

Araucaria

Araucaria araucana (Monkey Puzzle Tree )

Argyrocytisus

Argyrocytisus battandieri (Pineapple Broom )

Asimina

Asimina triloba (Common Pawpaw )

Aucuba

Aucuba japonica (Japanese Aucuba )

Bauhinia

Bauhinia variegata (Orchid Tree )

Calycanthus

Calycanthus floridus (Carolina Allspice )
Calycanthus occidentalis (Western Spicebush )

Caragana

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

Catalpa

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

Ceratonia

Ceratonia siliqua (Carob )

Cercidiphyllum

Cercidiphyllum japonicum (Katsura )

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 )

Chilopsis

Chilopsis linearis (Desert Willow )

Chimonanthus

Chimonanthus praecox (Fragrant Wintersweet)

Cladrastis

Cladrastis kentukea (American Yellowwood)

Cornus

Cornus florida (Flowering Dogwood )
Cornus florida 'Golden Nugget' (Golden Nugget Dogwood)
Cornus florida 'Welchii' (Tricolor Dogwood )
Cornus mas (Corneliancherry Dogwood)
Cornus nuttallii 'Goldspot' (Goldspot Dogwood, )
Cornus officinalis (Japanese Cornelian Dogwood )

Cotinus

Cotinus obovatus (American Smoketree )

Cytisus

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

Daphne

Daphne laureola (Spurge Laurel)

Delonix

Delonix regia (Royal Poinciana)

Dermatophyllum

Dermatophyllum secundiflorum (Mescal Bean )
Dermatophyllum secundiflorum 'Silver Peso' (Silver Peso Mescal Bean )

Firmiana

Firmiana simplex (Chinese Parasol Tree )

Fremontodendron

Fremontodendron (Flannel Bush )

Genista

Genista lydia (Lydia Broom )
Genista pilosa (Silkyleaf Broom )

Gleditsia

Gleditsia triacanthos (Honeylocust)
Gleditsia triacanthos var. inermis (Thornless Honeylocust)

Grevillea

Grevillea robusta (Silky Oak )

Gymnocladus

Gymnocladus dioica (Kentucky Coffeetree)

Hakea

Hakea microcarpa (Small-fruited Hakea)

Laburnum

Laburnum × watereri (Goldenchain Tree )

Lagerstroemia

Lagerstroemia chekiangensis (Crape Myrtle)
Lagerstroemia floribunda (Asian Crape Myrtle )

Lapageria

Lapageria rosea (Chilean Bellflower )

Liriodendron

Liriodendron chinense (Chinese Tuliptree)
Liriodendron tulipifera (Tuliptree )
Liriodendron tulipifera 'Aureo-marginatum' (Aureo-marginatum Tuliptree)
Liriodendron tulipifera 'Medio-pictum' (Medio-pictum Tuliptree )

Maackia

Maackia amurensis (Amur Maackia)
Maackia chinensis (Chinese Maackia)

Magnolia

Magnolia 'Caerhays Belle' (Caerhays Belle Magnolia)
Magnolia acuminata (Cucumber Magnolia )
Magnolia campbellii (Campbell's Magnolia )
Magnolia denudata (Yulan Magnolia)
Magnolia ernestii (Yellow Lily Tree)
Magnolia grandiflora (Southern Magnolia )
Magnolia insignis (Red Lotus Tree)
Magnolia kobus (Kobus Magnolia)
Magnolia liliiflora (Lily Magnolia)
Magnolia lotungensis (Eastern Joy Lotus Tree)
Magnolia salicifolia (Willowleaf Magnolia )
Magnolia sargentiana var. robusta (Sargent's Magnolia)
Magnolia sieboldii (Siebold Magnolia )
Magnolia × soulangeana (Saucer Magnolia)
Magnolia stellata (Star Magnolia)
Magnolia stellata 'Rosea' (Rosea Star Magnolia )
Magnolia stellata 'Waterlily' (Waterlily Magnolia)
Magnolia tripetala (Umbrella Magnolia )
Magnolia virginiana (Sweetbay Magnolia)

Melaleuca

Melaleuca diosmifolia (Dotted Melaleuca )
Melaleuca nesophila (Pink Melaleuca )

Nerium

Nerium oleander (Oleander)

Olneya

Olneya tesota (Ironwood)

Rhododendron (defines evaluations)

Rhododendron groenlandicum (Labrador-tea)

Robinia

Robinia neomexicana (New Mexican Locust )
Robinia pseudoacacia (Black Locust)
Robinia pseudoacacia 'Frisia' (Frisia Black Locust)

Rubus

Rubus rolfei (Creeping Raspberry)

Sassafras

Sassafras albidum (Common Sassafras )

Spathodea

Spathodea campanulata (African Tulip Tree)

Styphnolobium

Styphnolobium japonicum (Japanese Pagodatree )
Styphnolobium japonicum Millstone™ (Millstone Japanese Pagodatree)