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Flora & Fauna

Japanese Stiltgrass

Microstegium vimineum

Location: Woodland Trail
Japanese stiltgrass is a highly invasive summer annual, first introduced to the United States in 1919 as packing material for imported porcelain. In the ensuing decades it spread throughout the Eastern United States, including every county in Maryland. When small, Japanese stiltgrass resembles bamboo shoots which grow to form dense clumps of grass three feet tall. During the winter season, Japanese stiltgrass forms layers of thatch which choke out native plants. It can thrive in full sun and low light, and, once established, Japanese stiltgrass can spread rapidly, covering acres of land.

–Tim Curley, from the Glenstone Field Guide