Dichanthelium sabulorum var. patulum is a tufted perennial C3 grass (Aliscioni et al. 2003), hairs of two lengths long and short, mixed; spring phase 15-50 cm, stems stiff, sheaths much shorter than internodes, usually finely hairy, ligules inconspicuous.
Leaves alternate 2-6 cm long (or more), 0.3-0.8 cm wide, hairy at base. autumn phase a prostrate, matted, much-branched rosette; leaves ca 3 x 0.4 cm, crowded.
Flower spikelets few, about 0.2 cm sometimes finely hairy, few, 1-flowered, My-June; inflorescence diffuse, 3-6 cm; autumn inflorescences reduced, concealed by leaf sheaths, July-Nov. Seeds eaten by many birds and small mammals, plants eaten by geese and rabbits.
Wetland status: UPL.
Frequency in NYC: Very infrequent.
Habitat: Dry, open areas, sand, fill, near shore, pine barrens.