White Upland Aster (Oligoneuron album)
Synonyms: Stiff White Aster
A perennial, clump-forming; produces masses of white flowers; blooms from August to late September. Found across western Quebec and Vermont, south to Georgia, west to Saskatchewan, South Dakota, Colorado and Arkansas; found in open, drying prairies, limestone bluffs, sandy sites, gravelly glacial hills and dunes. Best in sunny locations and dry soils.