River Oats (Chasmanthium latifolium)

''Chasmanthium latifolium'', known as woodoats, inland sea oats, northern sea oats, and river oats is a grass native to the central and eastern United States, Manitoba, and northeastern Mexico; it grows as far north as Pennsylvania and Michigan, where it is a threatened species. The species was previously classified as ''Uniola latifolia'' .