Morphology

A rhizomatous, perennial grass with culms 60-100 cm tall and 2.5-5 mm thick. Ligules 0.5-0.8 mm. Blades 15-40 cm long, 2-8 mm wide.

Panicles 25-15 cm long, 2.5-6 cm wide. Branches 2.5-8 cm long. Spikelets 4-7 mm long, 2.5-4 mm wide, with 4-7 florets. Lower glumes 1.6-2.5 mm. Upper glumes 1.7-3.5 mm. Lemmas 3-3.9 mm, 5-9-veined. Paleas subequal to the lemmas. Anthers 2, 0.6-0.8 mm.

Name/Synonymy Info

Glyceria obtusa (Muhl.) Trin., Mém. Acad. Imp. Sci. St.-Pétersbourg, Sér. 6, Sci. Math. 1:366 (1830). Poa obtusa Muhl., Descr. gram. 147 (1817); Panicularia obtusa (Muhl.) Kuntze, Revisio gen. pl. 2:783 (1891). TYPE: U.S.A., Pennsylvania; G.H.E. ["H."] Muhlenberg.

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References

M.E. Barkworth & L.K. Anderton. 2007. Glyceria in Flora of North America, volume 24. Oxford University Press.

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