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The Secret Life of Plants: A Fascinating Account of the Physical, Emotional, and Spiritual Relations Between Plants and Man

Eastern Horizons: Shortlisted for the 2018 Edward Stanford Award

Arabia: A Journey Through The Heart of the Middle East

North: Finding My Way While Running the Appalachian Trail

Native Plants of the Sydney Region: From Newcastle to Nowra and west to the Dividing Range

The Botany of Desire: A Plant's-Eye View of the World

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The Old Ways: A Journey on Foot

The Flowering Plants Handbook: A practical guide to families and genera of the world

Lonely Planet London