Topography, climate, edaphology, and vegetation of Presquile, a James River island in Chesterfield County, Virginia, are considered in this study. A brief history of the island is provided. Seven soil types occurring on the island are described. Plant communities are classified as river escarpment, fill, swamp, marsh, and field border, and each is described. Species characterizing each community are given. A map of the island showing habitats is included.