Roughleaf Ricegrass

Oryzopsis asperifolia

Native to:
Canada, Prince Edward I., United States

📍 View on iNaturalist →

Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Poaceae
Genus:
Oryzopsis
Species:
Oryzopsis asperifolia
USDA Symbol:
ORAS

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Graminoid
Height:
75 cm
Light Requirements:
Part Shade
Drought Tolerance:
Medium
Bloom Months:
may,jun

Garden & Ecology Notes

Wildlife Value:
birds, small mammals
Deer Resistant:
Yes
Fire Ecology:
Fire adapted — tolerates or benefits from fire
Fire Notes:
Resprouts from rhizomes following fire; common in fire-maintained dry forests.

Soil Requirements

Soil Type:
moist, well-drained, organic-rich soil
pH:
5.0 - 7.0 (slightly acidic to neutral)
Drainage:
good drainage required
Moisture:
consistently moist
Notes:
prefers cool, shaded forest floors

Propagation & Germination

Stratification:
Cold/moist stratification required — 60–90 days
Germination Time:
14–30 days
Notes:
Requires cold stratification; germinates best at cool temperatures in spring.

The above propagation data sourced from Claude AI