Carex 
nigra (L.) Reichard
Sedge
 
 
Description:
 
  - 10-105 cm 
  in height
 
  - Very 
  narrow midrib and the presence of only a few nerves on both faces of the 
  perigynia make it identifiable
 
  - Achenes 
  are lens-shaped while the spikes tend to be cylindrical
 
 
 
Habitat:
 
  - Rocky 
  stream beds and banks
 
 
 
Distribution: