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Rough-leaved Rice Grass

Oryzopsis asperifolia

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Category
Grass / Sedge / Rush
Sun
Full to Partial
Soil moisture
Medium to Dry
Bloom time
May–Jul

About Rough-leaved Rice Grass

Rough-leaved Rice Grass is a quiet and sophisticated friend of the northern woodlands, bringing a touch of evergreen beauty to the shaded floor. This native perennial forms graceful, arching clumps of slender, dark green foliage that often stays verdant even under a blanket of winter snow. In late spring and early summer, it produces delicate, upright spikes with fuzzy, rice-like spikelets that stand at attention above the leaves. Native to the northern United States and Canada, it is frequently found in high-quality forests, rocky slopes, and shaded ridges, especially under coniferous trees like Jack Pine. It thrives in partial shade and is remarkably adaptable to average, rocky, or well-drained soils. This humble grass is a valuable resource for wildlife, providing essential cover and a food source for birds, small mammals, and deer. Its ability to maintain its color through the winter makes it a prized selection for naturalized woodland gardens or as a low-maintenance, year-round groundcover in shady spots.

Native range

Native to 28 states:

ColoradoConnecticutIowaIdahoIllinoisIndianaMassachusettsMarylandMaineMichiganMinnesotaMontanaNorth DakotaNew HampshireNew JerseyNew MexicoNew YorkOhioPennsylvaniaRhode IslandSouth DakotaUtahVirginiaVermontWashingtonWisconsinWest VirginiaWyoming

County range map

BONAP county-level native range map for Oryzopsis asperifolia

Range map courtesy of BONAP (Biota of North America Program).

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