Synonyms

• Basionym
  • Tripolium subg. Astropolium Nutt., Trans. Amer. Philos. Soc., n.s. 7: 295 (1840).

• Heterotypic
  • Tripolium sect. Oxytripolium DC., Prodr. 5: 253 (1836) , as "Oxytripolia".
  • Aster sect. Oxytripolium (DC.) Torr. & A.Gray, Fl. N. Amer. 2: 161 (1841).
  • Aster sect. Hesterastrum Benth. & Hook.f., Gen. Pl. 2(1): 272 (1873).
  • Aster subg. Oxytripolium (DC.) A.Gray, Proc. Amer. Acad. Arts 16: 98 (1880).
  • Conyzanthus Tamamsch. in Kom. (ed.), Fl. URSS 25: 185, 583 (1959).
    • Type species: C. graminifolius (Spreng.) Tamamsch.
  • Symphyotrichum sect. Oxytripolium (DC.) G.L.Nesom, Phytologia 77(3): 270 (1995).
    • Type species: non design.

Primary references

• Nuttall, T. 1840. Descriptions of new species and genera of plants in the natural order of the Compositae, collected in a tour across the continent to the Pacific, a residence in Oregon, and a visit to the Sandwich Islands and upper California, during the years 1834 and 1835. Transactions of the American Philosophical Society, held at Philadelphia, for promoting useful knowledge, n.s.[new series][ser. 2], 7: 283–453. BHL Reference page.  (basionym)
• Semple, J.C. in Semple, J.C., Heard, S.B., & Brouillet, L. 2002. Cultivated and native asters of Ontario (Compositae: Astereae): Aster L. (including Asteromoea Blume, Diplactis Raf. and Kalimeris (Cass.) Cass.), Callistephus Cass., Galatella Cass., Doellingeria Nees, Oclemena E.L.Greene, Eurybia (Cass.) S.F.Gray, Canadanthus Nesom, and Symphyotrichum Nees (including Virgulus Raf.). University of Waterloo Biology Series 41: 134 pp. Reference page. 

Additional references

• Bentham, G. & Hooker, J.D. 1873. Genera Plantarum ad exemplaria imprimis in herbariis Kewensibus servata definita. Vol. 2, pars I. Sistens Dicotyledonum Gamopetalarum ordines VI, Caprifoliaceas–Compositas. Pp. I–XII, 1–554. Lovell Reeve & Co., Williams & Norgate, Londini [London]. BHL Reference page. 

• De Candolle, A.P. 1836. Prodromus systematis naturalis regni vegetabilis, sive enumeratio contracta ordinum, generum, specierumque plantarum huc usque cognitarum, juxta methodi naturalis normas digesta. Pars 5: Sistens Calycereas et Compositarum tribus priores. 706 pp. Treuttel et Würtz, Parisiis [Paris]. BHL Reference page. 

• Nesom, G.L. 1994 publ. 1995. Review of the taxonomy of Aster sensu lato (Asteraceae: Astereae), emphasizing the New World species. Phytologia 77(3): 141–297. BHL Reference page. 

• Torrey, J. & Gray, A. 1841–1843. A Flora of North America containing abridged Descriptions of all the known indigenous and naturalized Plants growing North of Mexico; arranged according to the Natural System, Vol. 2. 527 pp. Wiley & Putnam, New York. BHL Reference page.