Flourensia


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. The genus name honours French physiologist Jean Pierre Flourens.
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.Flourensia blakeana M.O.Dillon – Argentina Flourensia campestris Griseb. – Argentina Flourensia cernua DC. – American tarwort, tarbush - Chihuahua, Coahuila, USA Flourensia collodes S.F.Blake – Chiapas, OaxacaFlourensia dentata S.F.Blake – ZacatecasFlourensia glutinosa - Oaxaca and PueblaFlourensia hirta S.F.Blake – Argentina Flourensia ilicifolia Brandegee – CoahuilaFlourensia laurifolia DC. – San Luis Potosí, Tamaulipas, HidalgoFlourensia leptopoda S.F.Blake – Argentina Flourensia macroligulata Seeligm. – Argentina Flourensia microphylla Flourensia monticola M.O. Dillon – Coahuila, Nuevo LeónFlourensia oolepis S.F.Blake – Argentina Flourensia pringlei S.F.Blake – Chihuahua, Durango, New Mexico Flourensia pulcherrima M.O.Dillon – DurangoFlourensia resinosa S.F.Blake – Hidalgo, QuerétaroFlourensia retinophylla S.F.Blake – CoahuilaFlourensia riparia Griseb. – Argentina Flourensia solitaria S.F.Blake – Coahuila

Formerly placed here

Austroflourensia angustifolia – PeruAustroflourensia cajabambensis – PeruAustroflourensia fiebrigii – Argentina, BoliviaAustroflourensia glutinosa – Bolivia, Peru Austroflourensia hirtissima – Argentina Austroflourensia macrophylla – PeruAustroflourensia niederleinii – Argentina Austroflourensia peruviana – Peru Austroflourensia polycephala – Peru