woodland biome savanna biome 2013-04-07T14:26:46Z A savanna biome is a woodland biome which has seasonal water availability and includes, across its entire spatial extent, trees spaced sufficiently far apart to allow an unbroken layer of grass, sedge (Cyperaceae) or rush (Juncaceae) communities to live. ENVO ENVO:01000178 ORCID:0000-0002-4366-3088 Preliminary definition SPIRE:Savannah_or_grassland