Purple threeawn, Purple 3-awn, Purple three-awn, Red threeawn
Poaceae (Grass Family)
Often in large bunches, the culms and leaf blades of this grass rise 12-20 in. in height. The seedhead is narrow and nodding with lax, purplish branches. Three long, bristles occur from each flower.
Image Gallery: 13 photo(s) available
Bloom InformationBloom Color: Purple
Bloom Time: Apr , May , Jun , Jul , Aug , Sep , Oct
, WY Canada: AB
, SK Native Distribution:
Throughout Texas north to Utah, Colorado and Kansas, south to northern Mexico. Native Habitat:
Sun, open ground, well-drained sand, clay, loam, limestone; Overgrazed ranges, disturbed roadsides, abandoned fields.
Growing ConditionsWater Use: Low
Light Requirement: Sun
Soil Moisture: Dry
CaCO3 Tolerance: High
Drought Tolerance: High
Soil Description: Dry, rocky soils.
Conditions Comments: With a gentle breeze passing through purple three-awn inflorescences (grass flowers), a dreamer can imagine that the earth has purple hair. This low-growing prairie grass is good for erosion control on banks and provides a root matrix for many wildflower species. Purple three-awn is an early successional species.
BenefitUse Wildlife: Seldom grazed. The seeds are food for some song birds, like the Junco. The plants provide nesting materials or habitat for some fur and game animals.
Conspicuous Flowers: yes
Interesting Foliage: yes
Larval Host: Skippers, Satyrs
Deer Resistant: High