Corynephorus canescens is a perennial C3 grass (Pooter et al. 1990), 20-60 cm.
Leaves basal in small dense cushions, waxy blue-gray green, very fine-filamentous; blade about 15 cm tall, sheaths often purplish; flowering stems about 30 cm long.
Flower spikelets 2-flowered, membranous, glumes 0.3-0.4 cm, hairy, as long as spikelet, lemmas shorter, short-awned; inflorescence dense, fluffy, silvery when young, 5-12 cm long.
Wetland status: NL.
Frequency in NYC: Occasional.
Habitat: Pioneers on bare, dry, sandy soil and fill in open areas, often with Trifolium arvense (Gargiullo personal observation).