widgeon grass

English

Noun

widgeon grass (usually uncountable, plural widgeon grasses)

  1. Certain aquatic grass-like herbs:
    1. seawrack, especially eelgrass (Zostera marina)
    2. tasselweed, widgeonweed (Ruppia spp.), of fresh water
      1. especially tassel pondweed (Ruppia maritima)

References