Slender Spikerush

Eleocharis nitida is a perennial growing from scaly, purplish rhizomes. The culms grow 1 to 8 inches tall. The inflorescences spikelets are 2.0–4.5 mm (0.8–1.8 in.) long, and each spikelet has from 5 to 30 flowers. It produces a three-angled, bristles achene, that is pale yellow to orangish in color, which matures in mid-June to mid-October. Its native range includes Newfoundland, Labrador, Nova Scotia, Ontario, Quebec, and Saskatchewan of Canada and the US states of Alaska, Michigan, Minnesota, New Hampshire, and Wisconsin. It is listed as a species of special concern in the US state of Minnesota, where it grows in full sun in moist to wet soils; it is found in areas with disturbed soils, in ditches, along trails, and shallow depressions, and bog pools.

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