- Book Talks
- Conifer Country: A natural history and hiking guide to 35 conifer taxa in the Klamath Mtns.
- Conifers of the Pacific Slope: A field guide to the conifers of California, Oregon, and Washington
- Field Guide to Manzanitas: A story of the California Floristic Province
- California Desert Plants
- Klamath Mountain Biodiversity (conifer emphasis)
- The Miracle Mile
- Conifers
- Conifers of the Klamath Mountains
- Biogeography (emphasis on Pinus)
- Evolution
- Conifers of the San Gabriel Mountains
- Whitebark Pine
- Bigcone Douglas-fir
- Forest Pathogens of the Klamath Region
- Community Science: an exploration of our relationship to natural history
- K-12 Classroom Applications
- Community Science
- Wilderness Areas of the Klamath Mountains
- The Bigfoot Trail: A Botanical Wonderland
Educator • Author • Ecologist
