Adansonia

Adansonia digitata (Baobab)

Adenium

Adenium obesum (Desert Rose )

Adenocarpus

Adenocarpus decorticans (Silver Broom )

Agave

Agave macroacantha (Black-spinned Agave)
Agave shawii (Shaw's Agave)

Akebia

Akebia quinata (Five-leaf Akebia )

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 )

Asimina

Asimina triloba (Common Pawpaw )

Aucuba

Aucuba japonica (Japanese Aucuba )

Berberis

Berberis × gladwynensis 'William Penn' (William Penn Barberry)
Berberis replicata (Evergreen Barberry)
Berberis verruculosa (Warty Barberry)

Calycanthus

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

Campsis

Campsis radicans (Trumpet Vine )

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 )

Ceiba

Ceiba speciosa (Floss Silk Tree)

Ceratonia

Ceratonia siliqua (Carob )

Cercidiphyllum

Cercidiphyllum japonicum (Katsura )
Cercidiphyllum japonicum 'Red Fox' (Red Fox Katsura)
Cercidiphyllum japonicum f. pendulum (Weeping Katsura Tree)

Cercis

Cercis canadensis (Eastern Redbud)
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 )

Chilopsis

Chilopsis linearis (Desert Willow )

Chimonanthus

Chimonanthus praecox (Fragrant Wintersweet)

Cladrastis

Cladrastis kentukea (American Yellowwood)

Cornus

Cornus florida (Flowering Dogwood )
Cornus mas (Corneliancherry 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 )

Fremontodendron

Fremontodendron (Flannel Bush )

Fuchsia

Fuchsia magellanica (Magellan Fuchsia )

Genista

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

Gleditsia

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

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 )

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 )

Morus

Morus alba (White Mulberry )
Morus alba 'Unryu' (Contorted Mulberry )

Nerium

Nerium oleander (Oleander)

Olneya

Olneya tesota (Ironwood)

Oxydendrum

Oxydendrum arboreum (Sourwood )

Parkinsonia

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

Parrotia

Parrotia persica (Persian Parrotia )

Rhododendron (defines evaluations)

Rhododendron groenlandicum (Labrador-tea)

Robinia

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

Rosa

Rosa acicularis (Wild Prickly Rose)