Purple threeawn

Aristida purpurea



This densely tufted bunchgrass has leaves up to 5 inches long that roll inward. The seed head is narrow, nodding, loose and purplish, with many three-awned spikelets. The second glume is twice as long as the first. The awns are widely spreading, nearly equal in length, and 1 to 2 inches long. Has also been called "needlegrass".

Purple threeawn is a perennial, warm-season, native - 12 to 30 inches tall.

Poor grazing for both livestock and wildlife. It is grazed only in the spring when plants are green and leaves are young


Grows on rocky hills and sandy plains and increases on overgrazed ranges.