Species that are not native and also have the potential to harm human health or to harm natural, agricultural or silvicultural resources can be listed as prohibited or restricted by the State of Michigan. If a species is prohibited or restricted, it is unlawful to possess, introduce, import, sell or offer that species for sale as a live organism, except under certain circumstances.
- Asiatic Sand Sedge
Asiatic Sand Sedge is a perennial sedge that grows to about a foot tall. It has a triangular stem with brown scales at the base. The leaves are often taller than the club-shaped flowering heads. There are small ridges along the the edge of the leaves, making it feel serrated.
- Japanese Stiltgrass
Japanese Stiltgrass resembles small, delicate bamboo. It grow 2-3 feet tall and has asymmetrical leaves that are pale green and lance-shaped. This grass generally grows in moist, rich soils and can tolerate full sun exposure as well as deep shade.
- Phragmites (Common Reed)
Restricted in Michigan
Invasive phragmites (also known as common reed) is a warm-season perennial grass with a rigid hollow stem and leaves that are flat, smooth, and green to grayish-green. The flowers grow as dense branched clusters on the end of each stem that are open and feathery at maturity. The plant ranges in height from 6-13 feet.