The South East Coastal Plain bioregion occurs entirely within Victoria and includes the Gippsland Plain, Otway Plain and Warnambool Plain sub-regions. The Gippsland Plain includes low lying coastal and alluvial plains, barrier dunes and swampy flats. Grassland and grassy woodland is associated with yellow and grey textured soils of the fertile flood plains. The Otway Plain in south west Victoria, includes coastal plains and dunes, foothills with river valleys and swamps in the lowlands. Grassland and grassy woodlands occur on floodplains on pale yellow and grey texture contrast soils.