Black-Eyed Susans are perennial daisies or
coneflowers, members of the sunflower family (Asteraceae). The flower
heads measure 2 to 3 inches in diameter with yellow rays circling a
dark-brown, spherical center. Commonly found in fields and on roadsides,
they bloom between May and August, reaching 2 to 3 feet in height. They
are native to the United States, east of the Rocky Mountains.