Brachyelytrum erectum perennial C3 grass (Waller and Lewis 1979) from a knotty root crown, stems 30 cm to 1 m tall, sheaths hairy, ligule membranous.
Leaves alternate, blade 8-18 cm long, 0.8-1.6 cm wide, both sides sparsely hairy, margin sparsely hairy; veins of blades with tiny cross-veins (use back-light).
Flower spikelets relatively few, appressed to axis, very slender, long-awned, glumes tiny, often only one, lemma 0.6-1 cm, 3-5 veined, hairy, awned from tip 1.2-2.5 cm long, axis prolonged as a thick bristle between lemma and palea; inflorescence slender, 5-15 cm long; blooming and fruiting July-Aug.
Wetland status: UPL.
Frequency in NYC: Very infrequent.
Habitat: Moist woods.