For Parnassia
Alexander, E.J. 1934a. Parnassia caroliniana, Carolina grass-of-Parnassus, native of southeastern United States. Addisonia 18: 43-46.
Alexander, E.J. 1934b. Parnassia grandifolia, Large-leaved grass-of-Parnassus, native of the southern Appalachians. Addisonia 18: 45-46.
Ball, P.W. 2016. Parnassia. In Flora of North America Editorial Committee. 2016. Flora of North America north of Mexico. Volume 12, Magnoliophyta: Vitaceae to Garryaceae. Oxford Univ. Press, New York, NY. 603 pp.
Gastony, G.J., and D.E. Soltis. 1977. Chromosome studies of Parnassia and Lepuropetalon (Saxifragaceae) from the eastern United States. A new base number for Parnassia. Rhodora 79: 573-578.
Godfrey, R.K., and J.W. Wooten. 1981. Aquatic and wetland plants of southeastern United States, dicotyledons. University of Georgia Press, Athens, Georgia.
Simmons. 2004. In Kubitzki, K., ed. 2004. The families and genera of vascular plants. VI. Flowering plants – Dicotyledons – Celastrales, Oxalidales, Rosales, Cornales, Ericales. Springer, Berlin. 489 pp.
Spongberg, S.A. 1972. The genera of Saxifragaceae in the southeastern United States. J. Arnold Arb. 53: 409-498.
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