References

For Ampelaster

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

Nesom, G.L. 1994a. Subtribal classification of the Astereae (Asteraceae). Phytologia 76: 193-274. Google Scholar

Nesom, G.L. 2000b. Generic conspectus of the tribe Astereae (Asteraceae) in North America and Central America, the Antilles, and Hawaii. Sida Botanical Miscellany 20: 1-100. Google Scholar

Semple, J.C. 2006f. Ampelaster. 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

Semple, J.C., and L. Brouillet. 1980a. A synopsis of North American asters: the subgenera, sections, and subsections of Aster and Lasallea. Amer. J. Bot. 67: 1010-1026. Google Scholar