For Senecio
Anderson, L.C. 1994. A revision of Hasteola (Asteraceae) in the New World. Syst. Bot. 19: 211-219. Google Scholar
Barkley, T.K. 2000. Senecio quaylei (Asteraceae: Senecioneae), a new species from north central Texas. Sida 19(2): 285-289. Google Scholar
Barkley, T.M. 1978. Senecio. N. Amer. Fl. II 10: 50-139. Google Scholar
Barkley, T.M. 1999. The segregates of Senecio, s.l., and Cacalia, s.l., in the flora of North America north of Mexico. Sida 18: 661-672. Google Scholar
Barkley, T.M. 2006a. Senecio. 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. Google Scholar
Bremer, K. 1994. Asteraceae: cladistics and classification. Timber Press, Portland, OR. 752 pp. Google Scholar
Cronquist, A. 1980. Asteraceae, Volume I, Vascular flora of the Southeastern United States. University of North Carolina Press, Chapel Hill, N.C. Google Scholar
Pelser, P.B., B. Nordenstam, J.W. Kadereit, and L.E. Watson. 2007. An ITS phylogeny of tribe Senecionae (Asteraceae) and a new delimitation of Senecio L. Taxon 56: 1077-1104. Google Scholar
Pippen, R.W. 1978. Cacalia. N. Amer. Fl. II 10: 151-159. Google Scholar
Cite as...