Branched leaves.
Leaves needle-like
Leaves wider than long.
With short branches, or without. Wet soils, standing water.
Or C. rostrata. Need to verify. Growing in standing water.
White rhizoids on lower stem. Leaf margins overlapping surface of leaf. Growing in organic soils.
Large plant leaves elliptic to obviate. Not sure that it is uliginosum. Shoulder slope of ridge adjacent to dalton highway. Just south of arctic circle.
Branches branch (pinnately branch)