Pachythamnus

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Pachythamnus
Scientific classification
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Pachythamnus

(R.M.King & H.Rob.) R.M.King & H.Rob.
Binomial name
Pachythamnus crassirameus
(B.L.Rob.) R.M.King & H.Rob.
Type species
Eupatorium crassirameum[2]
Synonyms[1][3]
  • Ageratina subgen. Pachythamnus R.M.King & H.Rob.
  • Eupatorium crassirameum B.L.Rob.
  • Ageratina crassiramea (B.L.Rob.) R.M.King & H.Rob.

Pachythamnus is a genus of Mesoamerican flowering plants in the tribe Eupatorieae within the family Asteraceae.[2][4]

Species

The only known species is Pachythamnus crassirameus, native to Guatemala, Nicaragua, El Salvador, and central and southern Mexico.[1]

Etymology[edit]

Ageratina is derived from Greek meaning 'un-aging', in reference to the flowers keeping their color for a long time. This name was used by Dioscorides for a number of different plants.[5]

References[edit]

  1. ^ a b c Flann, C (ed) 2009+ Global Compositae Checklist Archived 2014-11-06 at archive.today
  2. ^ a b King, Robert Merrill & Robinson, Harold Ernest. 1972. Phytologia 23(1): 153–154 in English
  3. ^ Tropicos, Pachythamnus (R.M. King & H. Rob.) R.M. King & H. Rob.
  4. ^ 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.
  5. ^ Gledhill, David (2008). "The Names of Plants". Cambridge University Press. ISBN 9780521866453 (hardback), ISBN 9780521685535 (paperback). pp 39