Artemisia tridentata ssp. vaseyana (Mountain big sagebrush)
Evergreen shrub with gray-green leaves typically 2-4 ft. tall though occasionally taller, flowering July to October. Prefers moderately deep, well-drained, slightly acidic to slightly alkaline soils on foothill benches, upper slopes and mountain meadows; 2,500 to 10,000 ft. elevation. Likely the most abundant of the big sagebrush subspecies. Occurs at higher elevations and in higher precipitation zones than the other subspecies. Also found on lower elevation sites with sufficient summer moisture, late-melting snow drifts, or on north facing slopes. Readily killed by wildfire; does not resprout. Extremely palatable subspecies for ungulate and sage-grouse forage; important wildlife habitat. Provides valuable cover for wildlife.
DISTRIBUTION / ADAPTATION
INFORMATION & ATTRIBUTES
Family: Asteraceae
Duration: Perennial
Growth Habit: Shrub/Tree
Native Status: Native
Growth Form: Multiple Stem
Mature Height: 7 ft.
Bloom Color:
Fruit/Seed Color: Brown
Bloom Period: Fall
Annual Precipitation: 11-45 in.
Drought Tolerance: Medium
Shade Tolerance: Intolerant
Elevation: ft.
Fire Resistance: No
Fire Tolerance: None
Nitrogen fixation: None
SOIL ADAPTATION
Coarse Texture: Yes
Medium Texture: Yes
Fine Texture: Yes
Salinity Tolerance: Low
CaCO3 Tolerance: High
pH Range: 6.0-8.5
SEEDING NOTES
Seeds per Pound: 1,973,100
Seeding Rate: PLS lbs/acre
Season: Fall
Days to Germination:
VARIETIES & LOCAL ACCESSIONS
None