Morphology
A rhizomatous, perennial grass with culms 50-100 cm tall and 3-5 mm thick. Sheaths scabridulous, keeled. Ligules 0.2-0.9 mm. Blades 25-40 cm long, 2-7 mm wide.
Panicles 15-25 cm long, 0.8-1.5 cm wide. Branches 5-9 cm long. Spikelets 3.5-5 mm long, 1-2.5 mm wide, with 3-4 florets. Lower glumes 1.3-2.4 mm. Upper glumes 1.7-3 mm. Lemmas 1.9-2.8 mm, 5-7-veined. Anthers 2, 0.3-0.5 mm.
Name/Synonymy Info
Glyceria melicaria (Michx.) F.T. Hubb., Rhodora 14:186 (1912). Panicum melicarium Michx., Fl. bor.-amer. 1:50 (1803); Panicularia melicaria (Michx.) Hitchc., Contr. U.S. Natl. Herb. 123:149 (1908). HOL: P (P-MICH); U.S.A., "Carolina" and Georgia [published locality; specimen labelled "Carolina"]; A. Michaux.
Poa torreyana Sprengel, Neue Entd. 2:104 (1821); Panicularia torreyana (Sprengel) Merr., Rhodora 4:146 (1906); Glyceria torreyana (Sprengel) Hitchc., Rhodora 8:211 (1906). TYPE: U.S.A., Massachusetts.
Poa elongata Torrey, Fl. n. middle United States 1:112 (1823), nom. illeg., non Willd. (1809); Glyceria elongata Trin., Mém. Acad. Imp. Sci. Saint-Pétersbourg, Sér. 6, Sci. Math., Seconde Pt. Sci. Nat. 3:58 (1836); Panicularia elongata (Trin.) Kuntze, Revisio gen. pl. 2:783 (1891). LEC: U.S.A., Massachusetts: near Deerfield; G.E. Cooley [Hitchc., Man. Grasses U.S. 865 (1935)].
References
M.E. Barkworth & L.K. Anderton. 2007. Glyceria in Flora of North America, volume 24. Oxford University Press.
