Wildflowers of Massachusetts, Connecticut, and Rhode Island in Color. 2008. 400 col. photogr. 200 p. Hardcover.

From the publisher's web site:This field guide will give nature enthusiasts instant access to the diverse and beautiful flora of these New England states. Combining 400 color photographs with concise descriptions, it is written in easy-to-follow nontechnical language. Colour illustrations have been carefully selected for their scientific accuracy and their aesthetic quality. Comprehensive in scope, this guide book offers descriptions of commonly encountered, rare, and even protected species not seen in other guides. The authors provide keys to each species based on observable characteristics of color, flower shape, and leaf arrangement, allowing novices and experts alike to quickly identify flowers. Nomenclature has been updated to reflect current and correct usage.