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Cultivar Registration of Unassigned Woody Ornamentals

The registration of woody ornamental cultivars for those groups that do not have an appointed International Cultivar Registration Authority (ICRA) began in 1948 under the auspices of the American Association of Nurserymen (AAN). The Arnold Arboretum served as the International Registration Authority for Unassigned Woody Ornamentals between 1959 and 1980. In 1980 the American Association of Botanical Gardens and Arboreta (AABGA) assumed responsibility for coordinating the registration of unassigned woody ornamentals within the United States and Canada. Since this date the U.S. National Arboretum (1981-1984), Longwood Gardens (1984-1993), The Royal Botanic Gardens, Ontario (1993), and Brooklyn Botanic Garden (1994-present) have served as the IRA for Unassigned Woody Ornamentals.

To register an unassigned woody ornamental cultivar, contact science@bbg.org

A directory of ICRAs and registration guidelines available here.


Registered Unassigned Woody Ornamentals

Abelia

Acer

Acer 'Jamestown' (rubrum)

Acer 'Jamestown' (rubrum)

Acer 'JohnPair' (saccharum)

Acer 'JohnPair' (saccharum)

Aesculus

Acca

Alnus

Amorpha

Arctostaphylos

Aronia

Artemisia

Aucuba

Baccharis

Berberis

Betula

Brachyglottis

Buddleja 'Autumn Beauty' (davidii)

Buddleja 'Autumn Beauty' (davidii)

Buddleja

Callicarpa

Calycanthus

Caragana

Carissa

Carpinus

Carya

Caryopteris

Cassia

Catalpa

Ceanothus

Celastrus

Celtis

Cercis

Chamaedaphne

Chamaedaphne 'Verdant' (calyculata)

Chamaedaphne 'Verdant' (calyculata)

Chamaelaucium

Chilopsis

Chionanthus

Cistus

Cladrastis

Clethra

Cornus

Correa

Corylopsis

Corylopsis 'Longwood Chimes' (glabrescens)

Corylopsis 'Longwood Chimes' (glabrescens)

Cotinus

Crataegus

Cuphea

Cytisus

Daphne

Deutzia

Diervilla

Elaeagnus

Enchylaena

Eriobotrya

Euonymus

Euphorbia

Eurya

Exochorda

Fothergillia

Fraxinus

Fremontodendron

Gardenia

Garrya

Gaylussacia

Gelsemium

Genista

Halesia

Hamamelis

Hibiscus

Hippophae

Illicium

Itea

Jasminum

Juglans

Koelreuteria

Laburnum

Laurus

Leiophyllum

Lespedeza

Leucophyllum

Leucothoe

Ligustrum

Liquidambar

Liriodendron

Lonicera

Loropetalum

Maclura

Mahonia

Malus

Morus

Myrica

Nandina

Neolitsea

Nothofagus

Nyssa

Osmanthus

Oxydendrum

Pachysandra

Parkinsonia

Parrotia

Parthenocissus

Paxistima

Photinia

Phygelius

Physocarpus

Pittosporum

Potentilla

Prunus

Pyrus

Quercus

Rhamnus

Rhaphiolepis

Ribes

Robinia

Romneya

Rubus

Salix

Salvia

Sambucus

Schinus

Sorbus

Sphaeral cea

Spiraea

Stauntonia

Stewartia

Streptosolen

Styrax

Symphoricarpos

Syzgium

Tamarix

Thymus

Tilia

Wisteria 'Longwood Chimes' (glabrescens)

Wisteria 'Longwood Purple' (frutescens)

Vaccinium

Viburnum

Vinca

Wisteria

Zelkova