Richard Spellenberg

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Books by Richard Spellenberg (50 max)

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Audubon Wild Flwrs-West

1989

Richard Spellenberg

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National Audubon Society field guide to North American wildflowers, western region

1994

Richard Spellenberg

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Trees of Western North America

2014

Richard Spellenberg, Christopher J. Earle, Gil Nelson, David More, Amy K. Hughes

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Trees of Eastern North America

2014

Gil Nelson, Christopher J. Earle, Richard Spellenberg, David More, Amy K. Hughes

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The Audubon Society field guide to North American wildflowers, western region

1979

Richard Spellenberg

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Sonoran Desert Wildflowers: A Field Guide to the Common Wildflowers of the Sonoran Desert, Including Anza-Borrego Desert State Park, Saguaro National Park, Organ Pipe National Monument, Ironwood Forest National Monument, and the Sonoran Portion of Joshua Tree National Park

2002

Richard Spellenberg

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Sonoran Desert wildflowers a field guide to common species of the Sonoran Desert, including Anza-Borrego Desert State Park, Saguaro National Park, Organ Pipe Cactus National Monument, Ironwood Forest National Monument, and the Sonoran portion of Joshua Tree National Park

2012

Richard Spellenberg

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Sonoran Desert Wildflowers, 2nd: A Guide to Common Plants

2012

Richard Spellenberg

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Trees of Eastern North America (Princeton Field Guides)

2014

Gil Nelson, Christopher J. Earle, Richard Spellenberg

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The sunflower family a guide to the family Asteraceae in the contiguous United States

2019

Richard Spellenberg, Naida Zucker