SelecTree: About SelecTree

SelecTree, a tree selection guide, is an interactive program designed to help you select appropriate trees. It will match trees to particular sites based on compatible characteristics. Lists of trees generated by SelecTree should be viewed as a guide, not as the final authority in a tree search.

Tree Characteristics Glossary and references are provided. Categories have been tailored for SelecTree. SelecTree is maintained by the Urban Forest Ecosystems Institute at Cal Poly State University, San Luis Obispo.

The SelecTree Nursery Connection

Nursery Connection This project is in the initial phase of an effort to connect SelecTree users with nurseries to improve appropriate tree selection. For this effort, nurseries and trees were identified from participating wholesalers. Tree records which match wholesaler listings will display a map to retail nursery locations with ties to the participating wholesalers. This project maintains that local nurseries may have the tree or can order it for you. A tree may not be available at any particular nursery or wholesaler. No guarantees are made to the availability of a particular tree. If you would like to see a particular tree listed, or know of a nursery that sells it, please contact us at

Intellectual Property Information / How to Cite SelecTree

The SelecTree information, images and guide are paid for with public funds and are available as a free public service. We welcome links to the SelecTree website, but caution that links may change. Images can be used for non-commercial scientific or educational purposes provided SelecTree is cited as the source. Citation directions are provided on each tree record listing.

Citation Example:

SelecTree. "Malus hupehensis Tree Record." 1995-2021. Apr 12, 2021.
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Initial information came from PG&E's TreeFinder database, and from Southern Trees, a CD developed by the University of Florida for the U.S. Forest Service. Ongoing support for SelecTree comes from Cal Fire, PG&E. and the NRES Department at Cal Poly State University, San Luis Obispo, CA.

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Thank You

Photos have been generously donated and collected from many sources. Of special note is the collection of botanist and photographer Blake Willson.

Resources, Arboretums and Botanical Gardens

Entities that have supported our photo collection.

Alameda Plazas and Alice Keck Park Memorial Garden - Santa Barbara, CA
Arbor Day Farm - Nebraska City, Nebraska
Balboa Park - San Diego, CA
BioPark Botanic Garden - Albuquerque, NM
Blake Garden - Kensington, CA
Boething Treeland Farms - Lodi, CA
Chico State University - Chico, CA
Claremont Community Forest
Dallas Arboretum - Dallas, TX
Denver Botanical Gardens - Denver, CO
Elysian Park - Los Angeles, CA
Filoli Gardens - Woodside, CA
Finch Arboretum - Spokane, WA
Gamble Garden - Palo Alto, CA
Hoyt Arboretum - Portland, OR
Huntington Botanical Gardens - San Marino, CA
LA County Arboretum - Arcadia, CA
Longwood Gardens - Kennette Square, PA
Lotusland - Santa Barbara, CA
Louisiana State Arboretum - Ville Platte, LA
LSU Hilltop Arboretum - Baton Rouge, LA
Mendocino Coast Botanical Gardens - Fort Bragg, CA
Morris Arboretum - Philadelphia, PA
National Arboretum - Washington, DC
Quarry Hill Botanical Garden - Santa Rosa, CA
Rancho Santa Ana Botanic Gardens - Claremont, CA
Red Butte Garden - Salt Lake City, UT
River Banks Botanical Garden - Columbia, SC
Sacramento State University Arboretum - Sacramento, CA
San Antonio Botanical Garden - San antonio, TX
San Diego Botanical Gardens - Encinitas, CA
San Marcos Growers - Santa Barbara, CA
Santa Barbara Botanic Garden - Santa Barbara, CA
Stanford University - Palo Alto, CA
Strybing Arboretum - San Francisco, CA
The Living Desert - Palm Desert, CA
The Morton Arboretum - Lisle, IL
Tilden Regional Parks Botanical Garden - Berkeley, CA
UC Berkeley Botanic Garden - Berkeley, CA
UC Davis Arboretum - Davis, CA
UC Santa Barbara - Santa Barbara, CA
UC Santa Cruz Arboretum - Santa Cruz, CA
Washington Park Arboretum - Seattle, WA

Juglans californica - photo

Juglans californica

Resistant to oak root fungus. Usually has multiple main trunks from ground level…

Photo by M. Ritter, C. Stubler and J. Reimer