<i>Aira caryophyllea</i> L. var. <i>caryophyllea</i> - silver hairgrass
Britton, N.L., and A. Brown. 1913. An illustrated flora of the northern United States, Canada and the British Possessions. 3 vols. Charles Scribner's Sons, New York. Vol. 1: 214. Courtesy of Kentucky Native Plant Society. Scanned by Omnitek Inc.
USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913. An illustrated flora of the northern United States, Canada and the British Possessions. 3 vols. Charles Scribner's Sons, New York. Vol. 1: 214.