Plants and Animals
Eleocharis tricostata Three-ribbed spike rush
Perennial spike-rush (20-50 cm) of coastal plain marshes; culms arising from thick rhizomes; spikelets large (20 mm) with dark brown scales; achene dark brown with 3 prominent ridges.
Status and Rank
State Status: T - Threatened (legally protected)
Global Rank: G4 - Apparently secure
State Rank: S2 - Imperiled
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Found in areas with a fluctuating water table such as coastal plain marshes, sandy lake edges, dune swales, seepages, sandy marshes, sandy and peaty edges of wetlands, and intermittent wetlands.
Colic root, Indian grass, big bluestem, little bluestem, prairie willow, bushy aster, bluejoint grass, twig-rush, cross-leaved milkwort, sedge, switch grass; often associated with other coastal plain disjunct species such as tall beak-rush, Engelmann's spike-rush, flat-topped goldenrod, Maryland meadow beauty, panicled screwstem, short-fruited rush, and tall nut-rush.
This species requires conservation of habitat and protection of the hydrology, including maintenance of cyclical drawdown regime and water table. Maintain moist, open habitat. It is also vulnerable to ORV impacts and dredging and filling activities.
Random meander search covers areas that appear likely to have rare taxa, based on habitat and the judgement of the investigator.
Survey Period: From fourth week of August to first week of October
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