Dichanthelium boscii is a perennial C3 grass (Basinger 2002), tufted stems 30-70 cm tall, often bent near base, often hairy, nodes densely hairy, sheaths hairy along margins and at top, sometimes on back.
Leaves 6-12 cm long, 1.5-3 cm wide, lance-shaped, base lobed, mostly hairy on both sides. Autumn phase leaf blade half as large, forming winter rosette with shorter, wider leaves.
Flower spikelets 1-flowered, sparse, hairy, also warty (use lens) 0.4-0.5 cm long, 0.2 cm wide, first glume half as long as second; primary inflorescence hairy, often partly inside leaf sheath, 5-10 cm long, branches few; autumn phase inflorescences from middle nodes, sparsely branched; blooms and fruits July-Oct. Seeds eaten by birds (Hilty 2006).
Wetland status: UPL.
Frequency in NYC: Very infrequent.
Habitat: Rich, dry woods.
Notes: Fed upon by larvae of the Hobomok Skipper Poanes hobomok (Hilty 2006).