Unidentified Cottongrass #21
Eriophorum sp.
Can you help verify the identity of this species of cottongrass?

An unidentified cottongrass as seen in a moist ditch along the Park Road near the Wonder Lake Ranger Station, Denali National Park and Preserve..............June 19, 2012.
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An unidentified cottongrass as seen in a moist ditch along the Park Road near the Wonder Lake Ranger Station, Denali National Park and Preserve..............June 19, 2012.