Vegetation of Samoa and Tonga

Abstract

Based on field studies and a previous review of the literature, 22 plant communities are recognized in the two adjacent South Pacific archipelagoes of Samoa and Tonga. Because of similarities of climate and flora, most of the communities are similar in the two archipelagoes; the major differences result from the coralline nature of most of Tonga and the volcanic nature of Samoa. The communities are briefly described, the dominant species are listed, and the variation between the two archipelagoes is noted.