redish flowers of grass yellow bluestem, latin name bothriochloa or andropogon ischaemum

agriculture andropogon autumn background beautiful beauty bloom blooming blossom botanical botany bothriochloa cereal closeup crop farm field flora floral flowers foliage food fresh grass green harvest herbaceous ischaemum landscape leaves meadow national natural nature outdoor outside park perennial plant red rural rye seed spring summer sunny sunset weed wheat yellow