life
cycle - perennial, reproducing by seed and rhizomes
stems - upright, much branched, smooth to pubescent
leaves -
alternate, linear to narrowly lanceolate, 3 to 5 parallel veins,
margins entire and rough, smooth above, fine pubescent below,
lower leaves deciduous by flowering leaves
flowers -
heads of golden yellow disk (tubulate) and ray (ligulate) florets;
flat-topped corymb flower heads