- The plant stands to 1.5 ft. (0.5 m) tall with oval to lance-shaped leaves.
- Leaves are 1-3 in. (2.5-7.6 cm) long, 0.2 in. (0.5 cm) wide and have heart shaped bases. The margins of the leaves have conspicuous hairs.
- Flowers bloom in early fall and are contained in 1 to several, 1-3 in. (2.5-7.6 cm) long spikes.
- Fruit is a caryopsis.
- Ecological Threat
- Arthraxon hispidus is an annual grass that was introduced into the United States, either accidentally or by immigrants, from Japan and eastern Asia. Arthraxon hispidus inhabits wet areas such as stream banks, flood plains and shorelines.
USDA Forest Service, Forest Health Staff, Newtown Square, PA Weed of the Week 
Invasive Plant Atlas of New England (IPANE) 
Virginia Tech Weed Identification Guide 
Flora of China, www.eFloras.org 
USDA NRCS PLANTS 
USDA ARS GRIN 
Images from Bugwood.org