The Illustrated Companion to Gleason and Cronquist’s Manual. Illustrations of the Vascular Plants of Northeastern United States and Adjacent Canada.
Cataclysms on the Columbia
The Jepson Manual. Higher Plants of California
Alpine and Subalpine Vegetation of the Wallowa, Seven Devils and Blue Mountains
Northwest Exposures. A Geologic Story of the Northwest
Plant Identification Terminology. An Illustrated Glossary.
A Field Guide To The Plants of Arizona
No primary photo.
Alpine Wildflowers of the Rocky Mountains
A Field Manual of the Ferns & Fern-Allies of the United States & Canada
Flora of the Pacific Northwest
Vascular Plants of West-Central Montana - Identification Guidebook
Smithsonian Handbooks Birds of North America Western Region
Sierra Birds - A Hiker's Guide
Fire Mountains of the West
Enter the Forest: A Guide to the Angeles National Forest
Wyoming Mountain Ranges
The Wallowa Mountains, A Natural History Guide
A Utah Flora
Arizona Flora
Guide to the Plants of the Wallowa Mountains of Northeastern Oregon