References for Plant Identification and Classification
Eastern/Central Medicinal Plants
Introduction to the Jepson Manual
Pacific States Wildflowers, Theodore F. Niehaus/Charles L. Ripper
Rodale's Illustrated Encyclopedia of Herbs
Spring Wildflowers of the San Francisco Bay Region
Thistle Greens and Mistletoe, James Wiltens
Vascular Plant Families, James Payne Smith, Jr.