Purple Threeawn is a perennial bunchgrass 12 to 24 inches tall. It grows in both warm and cool seasons. The plants are green with purple to red seed clusters, which cure to a straw color. Flowering occurs in spring and again in summer. They produce seed in early summer and fall. The grass can be found in loamy soils below 5000 feet.
Did You Know?
James Whitmore brought 400 longhorns with him from Texas to Utah in the 1850s. On April 13, 1863, Whitmore received a land certificate for a 160-acre tract, which included Pipe Spring.