Carex obnupta (Slough Sedge)


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Plant Description: A semi-tuft forming sedge, growing from dense, creeping rhizomes. Evergreen leaves are grass-like and coarse. Three to 7 cylindrical flower spikes on hollow, upright, angled stems are purplish black with the upper most part being male flowers and the lower part being comprised of female flowers, some pendulant, held above leaves. 

  • Height: 1-2ft
  • Width: 1-2ft
  • Watering needs: moist to wet
  • Sun needs: full sun to part shade 
  • Soil needs: standing water
  • Bloom Time: April-July
  • Portland Plant List (Backyard Habitat Certification): Yes

Landscape Use and Ecological Function: This native plant is found at lower elevations west of the Cascades. It grows in moist to very wet locations such as bogs, wet meadows, riverbanks, and shallow coastal swaps. Because of this, we recommend growing this plant in rain gardens. It is excellent for creating habitat and is a butterfly host.

*Photo by SevenOaks Nursery*

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