Mohlenbrock’s landmark Guide, so heralded at its initial appearance in 1975, has now been revised to include nearly a five percent increase in the number of taxa occurring uncultivated in the state of Illinois. Here are 3,204 taxa of ferns, gymnosperms, and flowering plants. Along with the addition of many new taxa, Mohlenbrock notes where the sta­tus of several taxa has been changed and where nomenclatural revisions have been made. When there is a common name generally used in Illinois for a taxa, he provides it as well. He follows the common name with an indication of flowering time for flowering plants and spore-production time for ferns. In addi­tion he gives a habitat statement and a general comment on each organism’s dis­tribution in Illinois. Included in this revised and enlarged Guide are all taxa known to be native in Illinois either at present or in the past, and all non-native vascular plants that appear to be able to maintain themselves year after year without cultivation. The basis for which every taxon is included in this manual has been verified by the author personally. Writing of the first edition, John W. Thieret, of Northern Kentucky Univer­sity, stressed that the book is “valuable not only to botanists of the area covered and of contiguous areas but also to those anywhere who are interested in overall distribution patterns.”

This latest edition of Vascular Flora of Illinois includes over thirty-four hundred species of flora from Illinois, adding more than 250 newly-recognized plants to this definitive collection. Because cataloguing our heritage is foremost in importance among naturalists, this book compiles essential information about plants in Illinois. Mohlenbrock includes all known taxa native to Illinois either at present or in the past and all non-native vascular plants that grow spontaneously and appear able to maintain themselves year after year without cultivation. The sequence of groups in the guide is ferns, conifers, and flowering plants, with cotyledons given before monocotyledons. Within each group, the families are arranged alphabetically, as are the genera within each family and the species within each genus. For each taxon recognized in this book, Mohlenbrock gives us a common name if one is generally used in Illinois. He follows this with an indication of flowering time for flowering plants, and of spore-production time in the case of ferns and their relatives. He also provides a habitat statement and a general comment on distribution in Illinois for each taxon. Containing information on Illinois flora not available anywhere else, this fourth edition of Vascular Flora of Illinois is essential for ecologists, environmentalists, and land developers. Those interested in wildflower identification will also find this guide helpful.

"Mohlenbrock's landmark Guide, so heralded at its initial appearance in 1975, has now been revised to include nearly a five percent increase in the number of taxa occurring uncultivated in the state of Illinois. Here are 3,204 taxa of ferns, gymnosperms, and flowering plants. Robert H. Mohlenbrock, editor of the Illustrated Flora of Illinois, of which ten volumes have been published to date, has been studying the Illinois flora for nearly 40 years. In this revised and enlarged Guide he presents all taxa known to be native in Illinois either at present or in the past and all non-native vascular plants that appear to be able to maintain themselves year after year without cultivation. He has personally verified the basis for including every taxon. Common names in general use are provided, as well as an indication of flowering time for flowering plants and spore-production time for ferns. He concludes with a habitat statement and a general comment on the distribution of each taxon throughout the state." --

Vascular Flora of Illinois: A Field Guide, Fourth Edition, presents the most up-to-date nomenclature available, adding 29 new genera, 226 new species, and 28 new hybrids, and also notes where the status of taxa, as well as the nomenclature, has changed. Indexes for common names and for family and genus names are included.

Wisconsin Flora: An Illustrated Guide to the Vascular Plants of Wisconsin. The first modern, comprehensive guide to the vascular flora of Wisconsin, including keys, descriptions, illustrations, and county distribution maps for over 2,100 plant species in 145 plant families and 750 genera.Includes: Keys to Wisconsin's vascular plant families, genera and species- Organized into four major groups: Ferns and Fern Relatives, Conifers, Dicots, Monocots- Over 2,100 species described, including a map of county distribution in Wisconsin- Illustrated with hundreds of line drawings- Additional information includes: Conservation status (endangered or threatened); native, introduced, or invasive in Wisconsin; wetland indicator status; coefficient of conservatism; typical habitats where found information; glossary of botanical terms. First published in 2013, the Flora is updated on a regular basis to incorporate new information, correct errors, etc. Now available by the same author: Wisconsin Flora: Field Guide, a more portable guide to the state's flora (ISBN 1979726906).

The first flora of Illinois was prepared in 1846 by Dr. Samuel B. Mead, a physician from Augusta, Illinois. Between 1846 and 1963, several people published plant lists and floras for various parts of Illinois. In 1975, Robert H. Mohlenbrock published his first edi­tion of Guide to the Vascular Flora of Illinois, followed by a second expanded and revised edition in 1986. This latest Vascular Flora of Illinois includes over thirty-two hundred species, an increase of almost three hundred since 1986. In addition, for the first time, taxa below the rank of species are recognized and may be identified by keys. Investigating seldom-visited patches of prairies, wetlands, and forested canyons, Mohlenbrock has added several native spe­cies to this flora. And while there has been extensive exploration for plants, Mohlenbrock has also re­searched the herbaria in an attempt to verify previous reports of records of Illinois plants. Because of a reinterpretation of existing genera, the number of genera of Illinois plants has increased markedly. Recent biosystematic techniques have be­gun to substantiate the genera that botanists such as John Kunkel Small, Per Axel Rydberg, and Edmund C. Greene proposed nearly a century ago. The sequence of groups in this book is ferns, coni­fers, and flowering plants, with dicotyledons given before monocotyledons. Within each group, the fami­lies are arranged alphabetically, as are the genera within each family and the species within each genus. For each taxon recognized in this book, Mohlenbrock gives a common name if one is gener­ally used in Illinois. He follows this by an indication of flowering time for flowering plants and of spore-production time for ferns and their relatives. He also provides a habitat statement and a general comment on distribution in Illinois for each taxon. Synonyms for some other scientific names used previously for a taxon appear in italics. This book contains indexes both for common names and for family and genus names.