Letterman's Needlegrass

Achnatherum lettermanii (Vasey) Barkworth

Grass family

Plant Type
Graminoid
Life Cycle
Perennial
Mature Height
24 inches
Flower Color
Yellow
Bloom Time
Summer

Growing Conditions

Light

Shade Tolerance Intolerant

Water

Water Use Low
Drought Tolerance High
Flood Tolerance None

Soil

Soil Types Loam, Sand
CaCO3 Tolerance Medium
Fertility Need Low

Stress Tolerance

Fire Tolerance High
Salt Tolerance None

Climate

pH Range 6.0 – 7.6
Frost-Free Days 90 days
Precipitation 6 – 20 in

Ecosystem & Wildlife

Pollinators Wind
Fall Color No
Evergreen No

Native Range

  • USA:  Arizona, California, Colorado, Idaho, Montana, Nevada, New Mexico, Oregon, Utah, Wyoming

Regional Native Status: L48 (N)

State-level native status is based on data available through Plants of the World Online. Regional Native Status comes from the USDA Plants Database. For more detailed native status information, please refer to BONAP.