Sessile Leaf Pineland Cress
Warea sessilifolia - Nash
Brassicaceae (Mustard) Family
Fruit is a long, narrow silique that splits along a seam when mature (a dry fruit with two seed chambers separated by a false partition typical of the Mustard family).
The related W. cuneifolia is quite similar but the leaves are considerably larger and easily distinguished from W. sessilifolia, which has small oval-shaped leaves.