References

For Parthenium

Cronquist, A. 1980. Asteraceae, Volume I, Vascular flora of the Southeastern United States. University of North Carolina Press, Chapel Hill, N.C. Google Scholar

Mears, J.A. 1975. The taxonomy of Parthenium Section Partheniastrum DC. (Asteraceae-Ambrosiinae). Phytologia 31: 463-482. Google Scholar

Rollins, R.C. 1950. The guayule rubber plant and its relatives. Contr. Gray Herb. 172: 3-72. Google Scholar

Strother, J.L. 2006ff. Parthenium. In Flora of North America Editorial Committee. 2006c. Flora of North America north of Mexico. Volume 21, Magnoliophyta: Asteridae, part 6: Asteraceae, part 3. Oxford Univ. Press, New York, NY. 616 pp. Google Scholar