Selectree & Pacific Islands Selectree

National Urban Tree Databases

Urban Forest Ecosystems Institute at Cal Poly

Overview

Cal Poly's Urban Forest Ecosystems Institute maintains comprehensive urban tree databases serving landscape architects, arborists, and city planners nationwide and internationally—from California municipalities to the State of Hawaii.

These interconnected platforms provide essential tools for professionals working in urban forestry, environmental planning, and landscape design, enabling data-driven decision-making for tree selection and ecosystem management across diverse climates and regions.

The Challenge

Professional users demanded a modern, mobile-ready platform that could handle sophisticated multi-criteria searches. They needed to filter trees by dozens of characteristics simultaneously: height ranges, drought tolerance, disease resistance, fall color, root behavior, climate zones, and more—across different regional databases.

The existing systems were outdated, difficult to navigate on mobile devices, and couldn't handle the complex queries required by professionals who needed to find trees matching multiple specific criteria for their projects. Users needed a solution that could scale across thousands of species while maintaining fast, responsive search performance.

The Solution

We built multiple interconnected platforms with custom relational databases and advanced search engines. Each system handles complex queries across 20+ tree attributes while maintaining fast performance across thousands of species and tens of thousands of images.

The platforms feature:

  • Advanced multi-criteria search with real-time filtering
  • Mobile-responsive design for field use
  • Comprehensive image galleries with detailed tree information
  • Regional database support (California, Pacific Islands)
  • Site condition matching and recommendations

Additional projects included California Big Tree, a registry of the state's champion trees, further expanding the ecosystem of tools available to forestry professionals.

Platform Features

Selectree homepage

Homepage & Navigation

Clean, intuitive interface designed for quick access to search tools and database information.

Selectree search interface

Advanced Search

Powerful multi-criteria search allowing users to filter by dozens of tree characteristics simultaneously.

Search dropdown filters

Filter Options

Comprehensive dropdown filters for height, drought tolerance, disease resistance, and more.

Tree information page

Detailed Tree Information

Comprehensive species profiles with images, characteristics, and growing requirements.

Site conditions matching

Site Conditions

Tools for matching trees to specific site conditions and environmental requirements.

Image gallery

Image Gallery

Extensive collection of tree images showcasing seasonal changes and growth stages.

Pacific Islands Selectree

Pacific Islands Selectree

Specialized database for Pacific Islands region, including Hawaii, with region-specific tree data.

Tree examples

Species Examples

Visual comparison tools and examples helping users understand tree characteristics and suitability.

Impact

10K+

Monthly Users

Across U.S. and internationally

3

Specialized Databases

Selectree, Pacific Islands, California Big Tree

1,000+

Searchable Species

Comprehensive tree database

10K+

Catalogued Images

High-quality tree photography

The platforms serve tens of thousands of users monthly across the United States and internationally, providing essential tools for urban forestry professionals, landscape architects, and city planners. The comprehensive database design enables complex queries while maintaining fast performance, making it an indispensable resource for tree selection and ecosystem management.