Aquatic and Wetland Vascular Plants of the Northern Great Plains
63. Poaceae, the Grass Family
13. Glyceria R. Br. -- Mannagrass3. Glyceria striata (Lam.) Hitchc. -- Fowl mannagrass
Culms 2-8 dm tall, slender, clumped or single from rhizomes. Leaves 1-4 mm wide, glabrous; sheaths glabrous, the ligule scarious, rounded, 1-2 mm long. Panicle 6-15(20) cm long, loosely spreading and open, the branches lax, spreading or drooping. Spikelets often purplish, ovate, 3- to 7-flowered, 2.5-4.5 mm long; glumes ovate-elliptic, the first 0.5-1 mm long, the second 0.8-1.5 mm long; lemmas elliptic, obtuse to subacute, 1.5-2 mm long, strongly nerved; anthers usually 2, 0.2-0.5 mm long. Grain dark brown, shiny, suborbicular, 0.7-1 mm long. Jun--Jul, seldom late Aug--Sep. Fresh wet meadows, springs and stream margins; common in the n part, the Black Hills and the Sand Hills, otherwise scattered; (Newf. and Labr. to B.C., s to FL, TX and CA).
 Glyceria striata (from Hitchcock 1950). |
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