Flourensia is a genus of flowering plants in the family Asteraceae. It contains subshrubs and shrubs, which are commonly known as tarworts. They are found in the southwestern United States, Mexico, and central South America (Bolivia and northern Argentina). The genus name honours French physiologist Jean Pierre Flourens (1794–1867).

Phylogenetic studies found that the genus as previously circumscribed was polyphyletic, and in 2023 many of the South American species were placed in the new genus Austroflourensia.

Species

20 species are currently accepted.

Formerly placed here

  • Austroflourensia angustifolia (DC.) J.C.Ospina & S.E.Freire (aș Flourensia angustifolia (DC.) S.F.Blake) – Peru
  • Austroflourensia cajabambensis (M.O.Dillon) J.C.Ospina & S.E.Freire (as Flourensia cajabambensis M.O.Dillon) – Peru
  • Austroflourensia fiebrigii (S.F.Blake) J.C.Ospina & S.E.Freire (as Flourensia fiebrigii S.F.Blake) – Argentina, Bolivia
  • Austroflourensia glutinosa (Rusby) J.C.Ospina & S.E.Freire (as Flourensia heterolepis S.F.Blake) – Bolivia (Cochabamba, Santa Cruz), Peru (Cusco)
  • Austroflourensia hirtissima (S.F.Blake) J.C.Ospina & S.E.Freire (as Flourensia hirtissima S.F.Blake) – Argentina (Río Negro)
  • Austroflourensia macrophylla (S.F.Blake) J.C.Ospina & S.E.Freire (as Flourensia macrophylla (A.Gray) S.F.Blake) – Peru
  • Austroflourensia niederleinii (S.F.Blake) J.C.Ospina & S.E.Freire (as Flourensia niederleinii S.F.Blake) – Argentina (La Rioja)
  • Austroflourensia peruviana (M.O.Dillon) J.C.Ospina & S.E.Freire (as Flourensia peruviana M.O.Dillon) – Peru (Ayacucho, Huancavelica)
  • Austroflourensia polycephala (M.O.Dillon) J.C.Ospina & S.E.Freire (as Flourensia polycephala M.O.Dillon) – Peru (Apurímac, Cusco)
  • Austroflourensia suffrutescens (R.E.Fr.) J.C.Ospina & S.E.Freire (as Flourensia polyclada S.F.Blake and Flourensia suffrutescens S.F.Blake) – Argentina (Jujuy, Salta)
  • Austroflourensia thurifera (Molina) J.C.Ospina & S.E.Freire (as Flourensia thurifera (Molina) DC.) – Chile (Coquimbo, Santiago, Valparaíso)
  • Austroflourensia tortuosa (Griseb.) J.C.Ospina & S.E.Freire (as Flourensia tortuosa Griseb.) – Argentina (Salta, Catamarca, Tucuman)

External links

  • Media related to Flourensia at Wikimedia Commons
  • Data related to Flourensia at Wikispecies