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*Polypogon viridis (Gouan) Breistroffer. Water Bent-grass. Phen: Apr-Jul. Hab: Springs, creekbeds, also introduced on ballast around old ports (where probably not persistent). Dist: Native of the Old World. Reported for nw. LA (MacRoberts, MacRoberts, & Allen 2020).

ID notes: Distinguished from Agrostis in having the spikelet falling as a whole, disarticulating below the glumes.

Origin/Endemic status: Mediterranean Europe and Africa

Synonymy: = ETx1, FNA24, K1, K3, K4, Meso6, NcTx, NE, Tucker (1996); = Agrostis viridis Gouan – C; = n/a – RAB; > Agrostis semiverticillata (Forssk.) C.Chr. – G, HC, Tx; > Agrostis verticillata Vill. – F, S13

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Wetland Indicator Status:

  • Atlantic and Gulf Coastal Plain: FACW
  • Eastern Mountains and Piedmont: FACW
  • Great Plains: FACW
  • Northcentral & Northeast: FACW

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image of plant© Jody Shugart, some rights reserved (CC BY), uploaded by Jody Shugart source CC-BY | Original Image ⭷
image of plant© Jody Shugart, some rights reserved (CC BY), uploaded by Jody Shugart source CC-BY | Original Image ⭷

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