Noun arrhenatherum has 1 sense
  1. Arrhenatherum, genus Arrhenatherum - oat grass
    --1 is a kind of plant genus
    --1 is a member of
     Gramineae, family Gramineae, Graminaceae, family Graminaceae, Poaceae, family Poaceae, grass family
    --1 has members:
     tall oat grass, tall meadow grass, evergreen grass, false oat, French rye, Arrhenatherum elatius
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