Title: Wildflowers of the Eastern United States, Author: Wilbur H. Duncan
Title: Wild Orchids of the Southeastern United States, North of Peninsular Florida / Edition 1, Author: Paul Martin Brown
Title: Wild Orchids of the Northeast: New England, New York, Pennsylvania, and New Jersey / Edition 1, Author: Paul Martin Brown
Title: Wild Orchids of the Canadian Maritimes and Northern Great Lakes Region / Edition 1, Author: Paul Martin Brown
Title: Trees and Shrubs of Kentucky / Edition 2, Author: Mary E. Wharton
Title: Trees and Shrubs of California / Edition 1, Author: John D. Stuart
Title: The Wild Orchids of North America, North of Mexico / Edition 1, Author: Paul Martin Brown
Title: North American Mushrooms / Edition 1, Author: Orson Miller
Title: Mushrooms of West Virginia and the Central Appalachians, Author: William C. Roody
Title: Muenscher's Keys to Woody Plants: An Expanded Guide to Native and Cultivated Species / Edition 1, Author: Edward A. Cope
Title: Food Plants of the World: An Illustrated Guide / Edition 1, Author: Ben-Erik van Wyk
Title: Field Guide to Coastal Wetland Plants of the Southeastern United States / Edition 1, Author: Ralph W. Tiner
Title: Alaska Trees and Shrubs / Edition 2, Author: Les Viereck
Title: A Guide to the Wildflowers of South Carolina, Author: Richard Dwight Porcher Jr.
Title: A Field Guide to the Trees and Shrubs of the Southern Appalachians / Edition 1, Author: Robert E. Swanson