Field Guide to the Grasses of Oregon and Washington. Second Edition

Résumé

Field Guide to Grasses of Oregon and Washington (1^st ed., 1999) was reviewed in J. Bot. Res. Inst. Texas 14(1), 2020. The reviewer noted that the Field Guide “is a comprehensive source of information on all 101 genera and 376 species, subspecies, and varieties of grasses known to occur in the natural environment of Oregon and Washington.” The second edition treats 394 species, 18 additional species more than the first edition. The new edition also includes “updated names, new keys, and improved photographs and maps.”The labeled macrophotographs illustrated beautifully the hard-to-see diagnostic features, critical for identification.