Tác giả: Todd Keeler Wolf

Robert Ornduff (1932-2000) served as Director of the University and Jepson Herbaria, Director of the University Botanical Garden, and Professor of Integrative Biology at the University of California, Berkeley. Phyllis M. Faber is General Editor of the California Natural History Guides. Todd Keeler-Wolf is Senior Vegetation Ecologist, California Department of Fish and Game.