[Sedges: The Genus Carex in the Columbia River Gorge of Oregon and Washington]

A portion of the female spike of Henderson's sedge as seen at Saddle Mt. State Park in the norther Oregon Coast Range..................May 21, 2009.

Close-ups of the inflorescence of Henderson's sedge as seen at Saddle Mt. State Park in the norther Oregon Coast Range..................May 21, 2009. The photo at left shows a close-up of the male spike with the long yellowish stamens redaily visible. The other 3 photos show the female spike with the 3 stigmas atop each perigynia easily visible. A portion of the leaf sheath is visible in the photo at right center.

The inflorescence (with terminal male spike most visible) and a close-up of the leaf sheath of Henderson's sedge as seen at Saddle Mt. State Park in the norther Oregon Coast Range..................May 21, 2009.

Additional close-up images of the inflorescence and a close-up of the inflated leaf sheath of Henderson's sedge as seen along the Springwater Trail several hundred meters west of Palmblad Avenue in eastern Gresham, OR.........May 24, 2011.