The Chattachoochee River forms the border between Alabama and Georgia. At the town of Eufaula, it is dammed to form the Walter F. George Reservoir (or Eufaula Lake for short). Streams have cut many small valleys deep into the land on both sides of the lake. Numerous R. prunifolium are found along these streams and also along the lake shore, especially on the north-facing slopes. R. colemanii is also present, but blooms in early May instead of July. We took the boat from Double Bridges to Polk Spring Branch and were able to observe there numerous R. prunifolium from both the water and land.