Northern Watermilfoil Grows as long green upstanding strands. Branches from central stem give off secondary horizontal branching strands. Stems may have a buff or pinkish hue.
Branches become more widely spaced further down the central stem.
Branches can be rather stiff, and the shape does not collapse when the plant is removed from the water. Individual plants are often connected by common roots. Size 3 to 6 inches. Long pink strands with periodic joints from which feather-like branches erupt. Strands often divide near the surface to form a thick canopy.