Wayside Plants of the Islands has been designed as a guide book to the identification of the most common plant species encountered in the lowlands of the Pacific Islands. It is based upon the author's 25 years of botanical excursions in Hawai'i, Samoa, Tonga, Tahiti, Fiji, Guam, Belau (Palau), and the other Pacific Islands. The lowlands here have been highly disturbed and are now entirely dominated by "alien" weedy species. This guide book includes color photos of 170 of the most common of these lowland species, with descriptions and other pertinent information. Most of the plants covered are widespread species that may be found in any part of the tropics, so this book is useful throughout the tropical Pacific and beyond.