Shade can be good in warm climates because it will remain cooler. I am not sure which of these grow in zone 9 (in zone 6) but these grow in dry shade. Will fruit more in more sun if you can limb up the shade. Dry will also decrease fruiting. Keeping the soil covered with mulch, and with plants will keep the soil much moister.
Lowbush Blueberry (Adaptable)
Black Huckleberry (Adaptable)
Bearberry (Deep taproot)
Woodland Strawberry (Adaptable)
Black Cohosh (Big tuber)
American Ginger (Tubers between plants)
Sassafras
Hazelnut
If it is a limited area, maybe make it a pollinator area with spring ephemeral. Some of these are medical, and only need sun before the trees come out. Would search for woodland medical herbs native to your area.
http://www.mast-producing-trees.org/2009/12/native-plants-for-dry-shade/