Deschampsia caespitosa and other species. Often call Hair Grass or Tussock Grass Deschampsia are a varied genus. Deschampsia cespitosa is a clump forming perennial grass that forms a neat mound. Most Deschampsia species prefer a humus rich moist position to perform well. Nurseries, Mail Order Nurseries, Specialist Nurseries, Retail Nurseries, Wholesale Nurseries, Garden Centers, Plant Nurseries and Australian Export Nurseries.