Japanese Stiltgrass

Japanese stiltgrass

(Microstegium vimineum)
*Detected in Michigan*
WATCH LIST

Report this species to:

Greg Norwood, DNR Wildlife Division, norwoodg@michigan.gov or 517-342-4514. 

If possible, please take one or more photos of the invasive species you are reporting. Also make note of the location, date and time of the observation. This will aid in verification of your report. You may be asked to provide your name and contact information if follow-up is needed.

- Or - use the Midwest Invasive Species Information Network (MISIN) online reporting tool 

- Or - download the MISIN smartphone app and report from your phone - www.misin.msu.edu/tools/apps/#home

 

Identification:

  • Delicate, low-growing annual grass 
  • Stems sprawl over one another and root at nodes
  • Short (3-8 cm) alternate leaves are pale green, lance-shaped with a distinctive, shiny mid-rib, slightly off-center
 

Japanese stiltgrass
Leslie J. Mehrhoff, University of Connecticut, Bugwood.org

Japanese stiltgrass
Leslie J. Mehrhoff, University of Connecticut, Bugwood.org

japanese stiltgrass
Leslie J. Mehrhoff, University of Connecticut, Bugwood.org

Habitat: This annual grass is very adaptable and tolerates varying levels of soil acidity and moisture but prefers forested floodplains. It will grow almost anywhere from deep shade to full sun.

Native Range: China, Japan, Korea, Malaysia, and India

U.S. Distribution: Japanese stiltgrass was first documented in Tennessee in 1919, introduced as a packing material for goods from Asia. It has spread across much of the eastern U.S. as far north as New Hampshire and as far south as Texas. 

Local Concern: Stiltgrass produces 100-1,000 seeds per plant and can spread rapidly by water flow, wildlife, foot and vehicular traffic. Deer will browse native plants and avoid stiltgrass, which allows for additional spreading. 

Other Common Names: Nepalese browntop, Asian stilt grass, Nepal, microstegium, eulalia.

MORE INFORMATION:

Japanese Stiltgrass Invasive Species Alert - Printable PDF