Columbia Sedge
Carex aperta
Synonym: Carex accedens
![Perigynia of Columbia Sedge: Carex aperta (Synonym: Carex accedens)](aperta/aperta6b.jpg)
Close-up of the perigynia of Columbia sedge as seen along the upper shoreline along Mirror Lake, Rooster Rock State Park............October 8, 2012.
- ![Lateral female spike of Columbia Sedge: Carex aperta (Synonym: Carex accedens)](aperta/aperta6c.jpg)
Close-ups of the inflorescence of Columbia sedge as seen along the upper shoreline along Mirror Lake, Rooster Rock State Park............October 8, 2012.
Paul Slichter