Dichanthelium commutatum  ( Panicum c.) variable panic grass Poaceae PACO2; R;

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

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

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

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.