- Alliance for Community Trees
- American Forests
- American Society of Consulting Arborists
- American Society of Landscape Architects
- Backyard Tree Identification Guide
- BYU Horticulture
- Cherry Hill Farms
- Dendrochronology Guide
- International Society of Arboriculture
- National Arbor Day Foundation
- Red Butte Garden
- Society of Municipal Arborists
- Tree City USA
- Tree Identification
- Tree Identification: From Christmas Trees to Fruit Trees
- Trees and Wood: An Identification Resource Guide
- Trees Are Good - ISA
- Tree Utah
- USU Forestry Extension
- USU Forestry Extension Tree Browser
- Utah Division of Forestry, Fire and State Lands
- Utah Nursery & Landscape Association
- Wood Rings and The Age of Trees
- USU tree tour
- UofU Tree Identification Tour
- USU Tree Identification Resources