In this volume, the first thorough account of the family to be published since 1839, 84 genera are recognised, encompassing 2319 species, 391 subspecies, and 27 named hybrids, and another 8135 names are treated as synonyms.

This excellent work will facilitate identification of relevant plants, use of plant resources, assessment of endangered states, the development of conservation strategies, and will promote systematic and evolutionary research of this group.

Providing a taxonomic treatment of some 700 species of the Ohio flora, this book presents descriptions of and commentary on the individual species and covers the families and genera to which they belong.

This critical Flora provides a definitive account of the native species, naturalised species, frequent garden escapes and casuals found in the British Isles.