I would like to collaborate with the Virginia Native Plant Society and map observations of Virginia Native Plants. Rare plants may have their location obscured.
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. 2: 260.