Pachythamnus

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

Species

Pachythamnus
Scientific classification
Kingdom:
Plantae
(unranked):
Angiosperms
(unranked):
Eudicots
(unranked):
Asterids
Order:
Asterales
Family:
Asteraceae
Subfamily:
Asteroideae
Supertribe:
Helianthodae
Tribe:
Eupatorieae[1]
Genus:
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.

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

Etymology

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]

gollark: ?tag bismuth1
gollark: ?tag blub
gollark: ?tag create blub Graham considers a hypothetical Blub programmer. When the programmer looks down the "power continuum", he considers the lower languages to be less powerful because they miss some feature that a Blub programmer is used to. But when he looks up, he fails to realise that he is looking up: he merely sees "weird languages" with unnecessary features and assumes they are equivalent in power, but with "other hairy stuff thrown in as well". When Graham considers the point of view of a programmer using a language higher than Blub, he describes that programmer as looking down on Blub and noting its "missing" features from the point of view of the higher language.
gollark: ?tag blub Graham considers a hypothetical Blub programmer. When the programmer looks down the "power continuum", he considers the lower languages to be less powerful because they miss some feature that a Blub programmer is used to. But when he looks up, he fails to realise that he is looking up: he merely sees "weird languages" with unnecessary features and assumes they are equivalent in power, but with "other hairy stuff thrown in as well". When Graham considers the point of view of a programmer using a language higher than Blub, he describes that programmer as looking down on Blub and noting its "missing" features from the point of view of the higher language.
gollark: > As long as our hypothetical Blub programmer is looking down the power continuum, he knows he's looking down. Languages less powerful than Blub are obviously less powerful, because they're missing some feature he's used to. But when our hypothetical Blub programmer looks in the other direction, up the power continuum, he doesn't realize he's looking up. What he sees are merely weird languages. He probably considers them about equivalent in power to Blub, but with all this other hairy stuff thrown in as well. Blub is good enough for him, because he thinks in Blub.

References
  1. Flann, C (ed) 2009+ Global Compositae Checklist Archived 2014-11-06 at Archive.today
  2. 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


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