Spiny Naiad (Najas minor), aka European Naiad -Exotic
Updated: Jan 25, 2021
Spiny Naiad is currently found in 7 locations within New Hampshire!
Spiny Naiad is a submersed rooted or floating plant.
Leave are paired, sometimes appearing whorled, and usually bunched at leaf axils.
The leaves are typically stiff, curled and pointed, and have spines along the margins that are visible to the naked eye, if not a hand lens. Leaves are about 1 mm wide and 0.5 to 3.5 cm long (Haynes 1979).
Look Alikes: This plant is distinguishable from native water naiad by its thicker and broader leaves with serrated edges.