timbercruiser; I was going to suggest that you might want to try some Bird'sfoot Trefoil. It gets flooded on my property every year and grows well. BUT; it doesn't seem to be a big deer draw. They eat it but other crops like clover are more attractive. Check the link below. It might work in your area.

http://www.wildlifeseeds.com/info/aeschynomene.html

Dan O.