To identify and name a plant correctly is a constant concern to gardeners and horticulturists. Botanical names change with the progress of science and at arial,helvetica gardeners need an authoritative guide to changes in plant nomenclature.

This index, based on the findings of a world-wide team of experts assembled to create The New Royal Horticultural Society Dictionary of Gardening, is the first single-volume work to provide newly revised names for over 60,000 ornamental and economic plants.

Plant names familiar to gardeners but now rejected by botanists are retained as cross-references. In addition, 30,000 cultivars are listed, as are 12,000 popular names, from Aaron's Rod to Zucchini. Each of the plants named carries a brief description and a hardiness rating, to make this an invaluable work of reference for all involved with plants and gardens.