Plant Families is an easy-to-use, beautifully illustrated guide to the more than seventy core plant families every horticulturist, gardener, or budding botanist

Flowering plant families of the world is the successor to Flowering plants of the world (1978).

Plant Names is a plain English guide to the use of plant names and the conventions for writing them as governed by the International Code of Botanical Nomenclat

Presents a comprehensive field guide to the ferns of northeastern and central North America, and contains color photographs and full-page line drawings.