Wetlands are increasingly viewed as valuable resources rather than wastelands and appreciated as reservoirs for species diversity. These two companion volumes p

Wetlands are increasingly viewed as valuable resources rather than wastelands and appreciated as reservoirs for species diversity. These two companion volumes p

Wetlands are increasingly viewed as valuable resources rather than wastelands and appreciated as reservoirs for species diversity. These two companion volumes p

This is by far the best and most comprehensive manual and illustrated guide to native and naturalized vascular plants—ferns, conifers, and flowering plants—