Tree Crops: A Permanent Agriculture, first published in 1929 and last updated in 1953 (and the ed...

The Story of Pollination, first published in 1961, is a classic introduction to plant pollination...

In contrast to modern commercial orchards consisting of closely planted trees attached to a trell...

Minnesota Flora: An Illustrated Guide to the Vascular Plants of Minnesota is the first modern, co...

Midwest Ferns is the first modern, comprehensive field guide to the true ferns and fern relatives...

Alaska Trees and Shrubs describes and illustrates over 150 woody plants – the trees and shrubs – ...

Edible Wild Plants of Eastern North America: Identifying and Using the Edible Wild Plants of the ...

Salt Mines and Castles, originally published in 1946, is a first-hand account of the work of the ...

Wildflowers of Zion National Park is a non-technical, full-color introduction to over 100 of the ...

Wetland and Aquatic Plants of the Northern Great Plains is a comprehensive field guide to over 50...

I Flew with the Lafayette Escadrille, first published in 1937 as The Great Adventure and updated ...

Minnesota Flora: An Illustrated Guide to the Vascular Plants of Minnesota is the first modern, co...