*Polypogon viridis (Gouan) Breistroffer. 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