Achnatherum thurberianum (Thurber's needlegrass)
Cool season, perennial bunchgrass common in semiarid regions from southern Idaho to the Columbia Basin. Can be a dominant species, though slow to establish. Good for use in disturbed mine reclamation. Excellent spring forage prior to awn development; moderate quality later in the season following seed shatter. An inherently low seed yielding species. May hybridize with A. hymenoides to form the hybrid Achnatherum x bloomeri. Varieties listed below.
DISTRIBUTION / ADAPTATION
INFORMATION & ATTRIBUTES
Family: Poaceae
Duration: Perennial
Growth Habit: Graminoid
Native Status: Native
Season: Cool season
Growth Form: Bunchgrass
Mature Height: 24 in.
Annual Precipitation: 6-16 in.
Drought Tolerance: High
Shade Tolerance: Intolerant
Elevation: up to 6,500 ft.
Fire Resistance: No
Fire Tolerance: High
SOIL ADAPTATION
Coarse Texture: Yes
Medium Texture: Yes
Fine Texture: No
Salinity Tolerance: Low
CaCO3 Tolerance: Low
pH Range: 6.0-7.5
SEEDING NOTES
Seeds per Pound: 225,000
Seeding Rate: PLS lbs/acre
Season: Fall
Days to Germination:
VARIETIES & LOCAL ACCESSIONS
Princeton - Higher seed yield potential than other accessions. (Released 2016, origin: Harney County, OR)