Fitzsimmons, J., Burrill, L., State University. Extension Service, O., State University. Cooperative Extension, W., of Idaho. Cooperative Extension System, U., States. Department of Agriculture, U., & Northwest Cooperative Extension, P. (1993). Common velvetgrass & German velvetgrass, Holcus lanatus L. and H. mollis. : [Corvallis, Or.] : Oregon State University Extension Service ; [Olympia, Wash.] : Washington State University Cooperative Extension Service ; [Moscow, Idaho] : University of Idaho Cooperative Extension System ; [Washington, D.C.] : U.S. Dept. of Agriculture.