widgeon grass

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)

• “widgeon grass”, in OneLook Dictionary Search.
• “widgeon grass”, in The Century Dictionary […], New York, N.Y.: The Century Co., 1911, →OCLC.
• Zostera marina on Wikipedia.Wikipedia
• Zostera marina on Wikispecies.Wikispecies
• widgeon grass on Wikipedia.Wikipedia
• Ruppia on Wikispecies.Wikispecies