Northern Prairie Wildlife Research Center
Western Wetland Flora
Field Office Guide to Plant Species
Calamagrostis inexpansa Gray
- Family: Grass (Gramineae)
- Flowering: July-September
- Field Marks: Calamagrostis is distinguished by its 1-flowered spikelets that have owned lemmas and a tuft of long hair at the base of each lemma. This species has lemmas with a straight awn about as long as the glumes, narrow panicles, an
- Habitat: Wet meadows, marshes, boggy areas.
- Habit: Tufted perennial with slender rhizomes.
- Stems: Upright, up to 3 1/2 feet tall, rough to the touch.
- Leaves: Elongated, narrow, flat or rolled up, 1/10-1/6 inch wide, rough to the touch.
- Flowers: 1 per spikelet, with many spikelets arranged in a narrow, dense panicle, the panicle up to 6 inches long; spikelets up to 1/4 inch long; lemmas with an awn about as long as the glumes.
- Sepals: 0.
- Petals: 0.
- Stamens: 3.
- Pistils: Ovary superior.
- Grains: Smooth.
- Notes: The grains are eaten by waterfowl.
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