Intermountain Flora (1). Vascular Plants of the Intermountain West, U.S.A.

Geological and Botanical History of the Region, Its Plant Geography and a Glossary. The Vascular Cryptogams and the Gymnosperms. This volume provides reliable keys, thorough descriptions, and plentiful illustrations for the flora of this region. The comprehensive section on botanical explorations in the Intermountain West begins with the year 1492.