For Ambrosia
Cronquist, A. 1980. Asteraceae, Volume I, Vascular flora of the Southeastern United States. University of North Carolina Press, Chapel Hill, N.C.
McMillan, P.D., and L. Prevost. 2022. Ambrosia porcheri (Asteraceae): a new species from the Blue Ridge Escarpment of South Carolina. Phytoneuron 2022-15: 1-6. Published 17 February 2022. ISSN 2153 733X
Strother, J.L. 2006dd. Ambrosia. In Flora of North America Editorial Committee. 2006b. Flora of North America north of Mexico. Volume 20, Magnoliophyta: Asteridae, part 6: Asteraceae, part 2. Oxford Univ. Press, New York, NY. 666 pp.
Cite as...