Hoffmannseggia tenella
 Hoffmannseggia tenella is a rare species of flowering plant in the legume family known by the common name slender rushpea. It is endemic to Texas where it is known from only two counties. It persists in small remnants of its gulf coastal prairie habitat. It is a federally listed endangered species of the United States.This is a small perennial herb growing up to 15 centimeters tall from a woody taproot. It may grow in colonies.