Northern Prairie Wildlife Research Center
Western Wetland Flora
Field Office Guide to Plant Species
Tall Manna Grass
Glyceria elata (Nash ex Rydb.) M.E. Jones
- Family: Grass (Gramineae)
- Flowering: June-August
- Field Marks: The spikelets of this manna grass are up to 1/4 inch long and contain 4-8 flowers. The rather succulent stems may be as much as 6 feet tall, and the leaves are 1/6-1/2 inch wide.
- Habitat: Wet meadows, moist woods, in shallow streams, ponds and lakes, ditches, around springs, in the mountains.
- Habit: Perennial herb with creeping rhizomes.
- Stems: Upright, usually unbranched, rather succulent, up to 6 feet tall, smooth.
- Leaves: Elongated, 1/6-1/2 inch wide, rough to the touch; ligules up to 1/4 inch long, finely hairy.
- Flowers: 4-8 in a spikelet, with many spikelets arranged in an open panicle up to 10 inches long; spikelets up to 1/4 inch long, somewhat flattened; lemmas with 7 nerves.
- Sepals: 0.
- Petals: 0.
- Stamens: 2.
- Pistils: Ovary superior, smooth.
- Grains: Narrow-ovoid, smooth.
- Notes: The seeds are eaten by waterfowl.
Previous Species -- Small Floating Manna Grass (Glyceria borealis)
Return to Species List -- Group 2
Next Species -- Holy Grass (Hierochloe odorata)