(Leymus arenarius or Elymus arenarius)
General description:
A free-floating annual aquatic herb in the Frog’s Bit family. Can dramatically affect native aquatic life and limit recreational activities.
Ecological threat:
- Invades shallow, quiet, or slow-moving water; edges of lakes, rivers, and streams; swamps, marshes, and ditches.
- Forms large colonies of dense, floating mats that can dramatically affect native aquatic life and limit recreational activities.
