Literature on the vegetation of limestone and dolomite (cedar) glades in the Ozarks of Missouri and Arkansas and in the midwestern United States is reviewed. Dominant plants in these glades are C4 perennial prairie grasses, of which little bluestem (Schizachyrium scoparium) is the most important. Without removal of invading woody plants by fire or other means, succession in these rocky, calcareous openings is to forest. They differ from cedar glades in the southeastern United States, which are dominated by C4 annual grasses (primarily Sporobolus vaginiflorus) and do not require management or natural disturbances to maintain them.

Key words: biogeography, community ecology, vegetation