Crop Science Registration. CV-9, BLUEGRASS. Issued: 01 Sep 1973.
- Funk, C. R., R. E. Engel, G. W. Pepin, & R. A. Russell. 1973. Crop Sci. (Madison) 13(5):580. Note: CV-9
U.S. Plant patent. Plant Patent 3150, 88.Herbaceous Ornamental Foliage Plants. Issued: 02 May 1972.