Thanks for the idea Andy. We have 10 Cyperus sp. native to the state. Most are annuals. The perennials grow only in sandy soil. I don't want to use reed canary grass and the bullrushes don't stablize the banks enough. That leaves me with prairie cord grass and perhaps streambank wheatgrass. We are getting quite a bit of bank erosion in some places. I'm lining the banks with concrete blocks in those places and want some plant to stabilize the soil around the blocks.
