Dalea foliosa is a species of flowering plant in the legume family known by the common name leafy prairie clover. It is an endangered species in the United States, where it occurs in three states: Illinois, Tennessee, and Alabama. As of 1997 there were 51 occurrences, mostly within the state of Tennessee. Most of these are in very poor condition and the species is in decline. Some plants have been reintroduced to habitat where the species occurred in the past, including part of Indiana.