For Polycarpon
Allen, C.M., J. Grandon, K. Megyeri, and B. Waguespack. 2010. Polycarpon tetraphyllum (Caryophyllaceae) new to the flora of Louisiana. J. Bot. Res. Inst. Texas 4: 775.
Bittrich, V. 1993. Caryophyllaceae. In Kubitzki, K., J.G. Rohwer, and V. Bittrich, eds. 1993. The families and genera of vascular plants. II. Flowering plants – Dicotyledons – Magnoliid, Hamamelid and Caryophyllid families. Springer, Berlin. 653 pp.
MacRoberts, M.H. and B.R. MacRoberts. 2020. Additions to the vascular flora of Caddo Parish, Louisiana. Phytoneuron 2020-74: 1-3. Published 18 November 2020. ISSN 2153 733X
Thieret, J.K., and R.K. Rabeler. 2005b. Polycarpon. In Flora of North America Editorial Committee. 2005. Flora of North America north of Mexico. Volume 5, Magnoliophyta: Caryophyllidae, part 2. Oxford Univ. Press, New York, NY. 656 pp.
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