Common in meadows, open, wet areas, marshes, seeps, seasonally wet edges of ponds, frequently alkaline soil, wide distribution , valleys up to middle elevations in CA, grows in western NA, to central U.S. (MN., MI., Manitoba, B.C., LA., OK., TX., Mexico, ) and South America. Plant to 2.5 ft. height, perennial with rhizomes, stems triangular, leaves flat to channeled, excellent for wet areas in all but high elevations in California. The rhizomes of this sedge will spread. This species will grow in sandy soils, and is good forage for livestock. Grows to middle elevations (~6000ft.) but doesn't grow into the spruce-fir zone in the intermountain area (Utah, and parts of ID, OR,WY, AZ, NV) of the U.S., to 9000 ft. in CA. Can be used as a mounding lawn. Either plant in a boggy area or water 1/week. Sedges can handle standing water and full sun. They handle shade and drought poorly. Plant in cobble for a creek' effect, plant with Mimulus species, (that's where the old separation between moist Mimulus and dry Diplacus is apparent), Juncus, Satureja, Stachys, and Anemopsis.
Carex praegracilis tolerates seasonal flooding.
Foliage of Carex praegracilis has color silver and is deciduous.
Flower of Carex praegracilis has color na.
Communities for Carex praegracilis:Creosote Bush Scrub, Coastal Sage Scrub, Coastal Strand, Red Fir Forest, Valley Grassland, Mountain Meadow, Riparian (rivers & creeks), Yellow Pine Forest and Central Oak Woodland.