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Questions and Answers: 2019

Question: Grass growing in a field in the Blue Hills south of Boston.

  • Question

    Grass growing in a field in the Blue Hills south of Boston.

    Answer

    Dear jfc, I can't see the image well enough to determine if this is Dactylus glomerata or Phalaris arundinacea. The leaf sheaths are different between these two species (the former is closed, the latter in open). It makes for a nice way to separate these two common grasses when their season has passed.