Crinkleawn is a climax co-dominant of deep sand ecological sites in the South Texas Sand Sheet and Gulf Coast Prairies and Marshes. It is an excellent forage producer and is often one of the first plants to decline in abundance under heavy grazing pressure in these areas. Crinkleawn forms dense colonies, and reproduces vegetatively by rhizomes. Seed is produced in mid-late fall, seedheads commonly reach 4-5’ in height and seeds are sub-tended by long white awns that help drill or push the seeds into the soil. Crinkleawn is easily identified in the field by the characteristic blue-green foliage. STN is currently evaluating 20+ collections of crinkleawn for development. Seed fill and the awns on the seeds are major hindrances to additional development of this species. Crinkleawn also has limited distribution in south Texas.