The Collaborative International Dictionary of English v.0.48:

Rowen \Row"en\, n. [Cf. E. rough, OE. row, rowe.] [Called also
   rowet, rowett, rowings, roughings.]
   1. A stubble field left unplowed till late in the autumn,
      that it may be cropped by cattle.
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            Turn your cows, that give milk, into your rowens
            till snow comes.                      --Mortimer.
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   2. The second growth of grass in a season; aftermath. [Prov.
      Eng. & Local, U.S.]
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