Dichanthelium commutatum. By Luba Batuner. Copyright © 2015 Luba Batuner.New England Wild Flower Society.gobotany.newenglandwild.org

Dichanthelium commutatum is a perennial C3 grass (Aliscioni et al. 2003), stems 30-80 cm long, often purplish, sometimes hairy; sheaths hair-at top, ligules inconspicuous. 

Dichanthelium commutatum plants. commons.wikimedia.org (Accessed 2/2018).

Leaves lance-shaped, 5-12 cm long, 0.7-1.8 cm wide, mostly smooth but sparsely hairy at lobed, base, lobes clasping stem. 

Dichanthelium commutatum inflorescence. R. Schipper. Herbarium University of Michiga. michiganflora.net (Accessed 2/2018).

Flower spikelets 1-flowered, 0.2-0.3 cm long, sometimes finely hairy, blooms May-Aug.; primary inflorescence egg-shaped, 5-12 cm long, about as wide, primary inflorescence deciduous, late inflorescences smaller and partly hidden in sheaths, plants branched from middle and upper nodes; June-Nov. 

Wetland status: FACU+. 

Frequency in NYC: Very infrequent. 

Origin: Native. 

Habitat: Open woods, sandy or rocky open areas.