[Sedges: The Genus Carex West of the Cascade Mountains of Oregon and Washington]

Merten's Sedge

Carex mertensii

Synonym: Carex columbiana

Inflorescence of Merten's Sedge: Carex mertensii (Synonym: Carex columbiana)

Close-up of the inflorescence of Merten's sedge as seen in marshes at Wheeler, OR, on the north Oregon coast........May 22, 2009. The uppermost spikes are androgynous (male) while the lower, lateral spikes are a mix of staminate and pistillate flowers in this view.

Lateral spike of Merten's Sedge: Carex mertensii (Synonym: Carex columbiana) - Perigynia of Merten's Sedge: Carex mertensii (Synonym: Carex columbiana)

Close-up of a lateral spike (note that the basal portion is gynecandrous while the distal portion is androgynous) and oval, flattened perigynia of Merten's sedge as seen in marshes at Wheeler, OR, on the north Oregon coast........May 22, 2009.

Merten's Sedge: Carex mertensii (Synonym: Carex columbiana)

Close-up of the inflorescence (and leaf sheaths) of Merten's sedge as seen in marshes at Wheeler, OR, on the north Oregon coast........May 22, 2009. Note the pendant lateral spikes.

Paul Slichter