Adansonia

Adansonia digitata (Baobab)

Adenium

Adenium obesum (Desert Rose )

Adenocarpus

Adenocarpus decorticans (Silver Broom )

Albizia

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

Aleurites

Aleurites moluccanus (Candelnut)

Amorpha

Amorpha nana (Dwarf Wild Indigo )

Argyrocytisus

Argyrocytisus battandieri (Pineapple Broom )

Bauhinia

Bauhinia variegata (Orchid Tree )

Caragana

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

Ceiba

Ceiba speciosa (Floss Silk Tree)

Ceratonia

Ceratonia siliqua (Carob )

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 )

Cladrastis

Cladrastis kentukea (American Yellowwood)

Cytisus

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

Delonix

Delonix regia (Royal Poinciana)

Firmiana

Firmiana simplex (Chinese Parasol Tree )

Fremontodendron

Fremontodendron (Flannel Bush )

Gleditsia

Gleditsia macracantha (Large Spined Honeylocust)

Grevillea

Grevillea robusta (Silky Oak )

Hakea

Hakea microcarpa (Small-fruited Hakea)

Hamamelis

Hamamelis × intermedia (Witchhazel)

Hibiscus

Hibiscus syriacus (Rose of Sharon )

Holodiscus

Holodiscus discolor (Oceanspray )

Laburnum

Laburnum × watereri (Goldenchain Tree )

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 denudata (Yulan Magnolia)
Magnolia ernestii (Yellow Lily Tree)
Magnolia lotungensis (Eastern Joy Lotus Tree)
Magnolia salicifolia (Willowleaf Magnolia )

Olneya

Olneya tesota (Ironwood)

Oxydendrum

Oxydendrum arboreum (Sourwood )

Parkinsonia

Parkinsonia florida (Blue Palo Verde)
Parkinsonia microphyllum (Littleleaf Palo Verde )

Parrotia

Parrotia persica (Persian Parrotia )

Pterostyrax

Pterostyrax hispida (Epaulette Tree )

Rhododendron (defines evaluations)

Rhododendron groenlandicum (Labrador-tea)

Robinia

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

Santolina

Santolina chamaecyparissus (Lavender Cotton)
Santolina virens (Green Lavender Cotton )

Styphnolobium

Styphnolobium japonicum (Japanese Pagodatree )
Styphnolobium japonicum Millstone™ (Millstone Japanese Pagodatree)
Styphnolobium japonicum 'Pendula' (Weeping Scholar-tree )

Toona

Toona sinensis (Chinese Toon )

Ulex

Ulex europaeus (Common Gorse )