This is the third in a series of guides to the field identification of North American marsh and water plants. Described are plants which have foliage habitually under water or floating, or which have underwater or floating forms, and which have characteristics by which they can be distinguished with the naked eye. Where genera or species cannot be distinguished with the naked eye, only group descriptions are given. The plants are divided into twelve main groups on obvious structural characteristics; once the reader has decided to which of these groups a plant belongs, he should look at the illustrations of plants in the group and read their descriptions until he has a match. Each illustration and description is headed with a common name and scientific name; in general no attempt is made to indicate the classification of the plant beyond the genus. Plants are indexed by both species name and common name.
Additional publication details
Federal Government Series
Underwater and floating-leaved plants of the United States and Canada