NAPCC Collections by Name

Abies (Firs)
Morris Arboretum of the University of Pennsylvania 35 taxa, including cultivars

Acer (Maples) - 11 institutions in multisite collection
Arnold Arboretum of Harvard University 133 taxa, 55 species
Atlanta Botanical Garden 82 taxa
Cornell Plantations 98 taxa
Dawes Arboretum 336 taxa
Hoyt Arboretum 67 taxa
Morris Arboretum 82 taxa
Morton Arboretum 67 taxa
New York Botanical Garden 114 taxa
Quarryhill Botanical Garden 69 taxa
University of British Columbia Botanical Garden 116 taxa
University of Washington Botanic Gardens 209 taxa

Aesculus  (Buckeyes & Horse-Chestnuts)
Dawes Arboretum 59 taxa

Agavaceae (Agave Family)
Desert Botanical Garden 346 taxa

Agave (Agaves)
Arizona-Sonoran Desert Museum 65 taxa

Alpine Plants of Colorado
Betty Ford Alpine Gardens 87 taxa

Alpines of the World
Denver Botanic Gardens
223 taxa

Arecaceae (Palm Family)
Arboretum at Arizona State University 80 taxa (Phoenix dactylifera cvs)
Fairchild Tropical Botanic Garden 625 taxa, 2006 accessions
Montgomery Botanical Center 358 taxa

Bamboo (Bamboos)
San Diego Botanic Garden 
121 taxa

Buxus (Boxwood)
US National Arboretum 137 species and cultivars

Cacti & Succulents of the Mojave Desert
Springs Preserve 
52 taxa

Camellia (Camellias)
Huntington Botanical Gardens 40 species, 1200 cultivars
Norfolk Botanical Garden 525 taxa

Carya (Hickories, Pecans)
Arnold Arboretum of Harvard University 18 taxa, 11 species

Cercis (Redbud)
JC Raulston Arboretum 40 taxa

Citrus (Citrus)
Fullerton Arboretum (California State University) 36 accessions, 20 taxa

Clematis (Clematis)
Rogerson Clematis Collection (Friends of)
 709 taxa Provisional Status

Cornus (Dogwoods)
Cheekwood Botanical Gardens & Museum of Art  61 taxa

Cycadopsida (Cycads) - 4 institutions in multisite collection
Ganna Walska Lotusland 169 taxa, 3 families, 10 genera
Fairchild Tropical Botanic Garden 150 taxa
Montgomery Botanical Center 222 taxa
University of California Botanical Garden 103 taxa

Dudleya (Dudleyas)
Santa Barbara Botanical Garden 52 taxa

Fagus (Beeches)
Arnold Arboretum of Harvard University 26 taxa, 8 species

Fern (Ferns)
University of California Botanical Garden at Berkeley
370 species

Geranium (Geraniums)
Chicago Botanic Garden 102 taxa including 85 cultivars

Grasses
Minnesota Landscape Arboretum  184 taxa

Hamamelis (Witch Hazels)
Dawes Arboretum 
75 taxa
Green Spring Gardens 106 taxa

Heaths and Heathers
Mendocino Coast Botanical Gardens 167 taxa

Hexastylis (Wild Gingers)
Mt. Cuba Center 26 taxa, 68 accessions

Hosta (Hostas)
Toledo Botanical Garden 484 taxa

Hydrangaceae (Hydrangea Family)
Norfolk Botanical Garden 190 taxa

Ilex (Hollies)
Scott Arboretum of Swarthmore College 312 taxa
University of Washington Botanic Gardens 47 species

Kalmia (Mountain Laurels)
Highstead Arboretum 82 taxa, 3 species, 76 cultivars
Jenkins Arboretum 48 taxa

Lagerstroemia (Crepe Myrtles)
Norfolk Botanical Garden 
75 taxa

Magnolia (Magnolias) - 15 institutions in multisite collection
Atlanta Botanical Garden
Bartlett Tree Research Laboratories Arboretum
Hoyt Arboretum

JC Raulston Arboretum
The Morton Arboretum
Powell Gardens
Quarryhill Botanical Garden
 (provisional)
San Francisco Botanical Garden
Scott Arboretum of Swarthmore College
South Carolina Botanical Garden
University of British Columbia Botanical Garden
Univ of California Botanical Garden
University of Florida-North Florida Research Station
University of Washington Botanic Gardens 

VanDusen Botanical Garden (provisional)
Henry Foundation for Botanical Research 15 taxa (Eastern US natives)

Malus (Crabapples)
The Morton Arboretum 185 taxa

Mesoamerican Cloud Forest
San Francisco Botanical Garden 331 species in 182 genera representing 83 families (primarily from tropical mountains of southern Mexico and Central America)

Metasequoia (Dawn-Redwood)
The Dawes Arboretum
9 taxa including 47 wild collected accessions and 8 cultivars

Nymphaea (Waterlilies)
Longwood Gardens  97 taxa

Orchids
Phipps Conservatory & Botanical Gardens  352 taxa (Cypripedioideae - slipper orchids)
Smithsonian Gardens  2,400 tropical species orchids

Paeonia (Peonies)
Matthaei Botanical Gardens & Nichols Arboretum 292 taxa (Upjohn herbaceous cultivars)

Penstemon (Beard-Tongues)
Idaho Botanical Garden
33 taxa, Provisional Status

Pinus (Pines)
Minnesota Landscape Arboretum 60 taxa

Plumeria (Frangipani)
Naples Botanical Garden  348 taxa

Primula (Primroses)
Jensen-Olson Arboretum 
65 taxa

Quercus (Oaks) - 19 institutions in multisite collection
Bartlett Tree Research Laboratories Arboretum 153 taxa
Boyce Thompson Arboretum  35 taxa
Chicago Botanic Garden 64 taxa
Cornell Plantations 77 taxa
Denver Botanic Gardens 61 taxa
Donald E Davis Arboretum 34 taxa
Holden Arboretum 64 taxa
Landis Arboretum 14 taxa
Missouri Botanical Garden 40 taxa
Morris Arboretum of Univ of Pennsylvania 58 taxa
The Morton Arboretum 67 taxa
Mount Auburn Cemetery 25 taxa
New York Botanical Garden 46 taxa|
Rancho Santa Ana Botanic Garden 27 taxa
Scott Arboretum of Swarthmore College 52 taxa
Starhill Forest Arboretum 290 taxa|
Taltree Arboretum & Gardens 112 taxa
UC-Davis Arboretum 92 taxa
Univ of California Botanical Garden 71 taxa
Univ of Washington Botanic Gardens 86 taxa

Rhododendron (Rhododendrons, Azaleas)
Jenkins Arboretum 1861 taxa
North Carolina Arboretum 16 species (US native deciduous azaleas)
Rhododendron Species Botanical Garden 300 accessions, 24 taxa including 8 cultivars (Fortunei series)
Tyler Arboretum 529 taxa

Rosa (Roses)
Montreal Botanical Garden/Jardin botanique de Montreal
1097 taxa
Reiman Gardens at Iowa State University 74 taxa (Dr. Griffith Buck cultivars) 

Sarracenia (Pitcher Plants)
Atlanta Botanical Garden 78 taxa

Spiraea (Spireas)
Chicago Botanic Garden 89 taxa

Stewartia (Stewartias)
Arnold Arboretum of Harvard University 11 taxa, 7 species
Polly Hill Arboretum 19 taxa

Syringa (Lilacs)
Arnold Arboretum of Harvard University 201 taxa, 22 species

Tilia (Lindens)
The Morton Arboretum
46 taxa

Trillium (Trilliums)
Mt. Cuba Center 71 taxa, 512 accessions
New England Wild Flower Society, Garden in the Woods 28 taxa, 325 accessions

Tsuga (Hemlocks)
Arnold Arboretum of Harvard University 59 taxa, 7 species

Ulmus (Elms)
The Morton Arboretum 73 taxa