Piptothrix is a genus of Mesoamerican plants in the tribe Eupatorieae within the family Asteraceae.D.J.N.Hind & H.E.Robinson. 2007. Tribe Eupatorieae In: The Families and Genera of Vascular Plants vol.VIII. (Joachim W.Kadereit & Charles Jeffrey, volume editors. Klaus Kubitzky, general editor). Springer-Verlag. Berlin, Heidelberg.Gray, Asa. 1886. Proceedings of the American Academy of Arts and Sciences 21: 383 descriptions in Latin, commentary in EnglishTropicos, Piptothrix A. Gray
SpeciesFlann, C (ed) 2009+ Global Compositae Checklist The Plant List search for Piptothrix Piptothrix areolaris (DC.) R.M.King & H.Rob. - from Chihuahua to El Salvador Piptothrix jaliscensis B.L.Rob. - Jalisco Piptothrix palmeri A.Gray - Chihuahua Piptothrix pubens A.Gray - Jalisco Piptothrix sinaloae S.F.Blake - Sinaloa formerly included see Ageratina Jaliscoa Piptothrix aegiroides B.L.Rob. & Greenm. - Jaliscoa goldmanii (B.L.Rob.) R.M.King & H.Rob. Piptothrix arizonica A.Nelson - Ageratina paupercula (A.Gray) R.M.King & H.Rob. Piptothrix goldmanii B.L.Rob. - Jaliscoa goldmanii (B.L.Rob.) R.M.King & H.Rob. Piptothrix paleacea Cronquist - Jaliscoa paleacea (Cronquist) R.M.King & H.Rob.
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