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?
Three episodes of Death Valley Days ("Long Night at Fort Lonely", "Key to the Fort", "A Full House") were filmed at Pipe Spring National Monument in 1967.