| 词条 | Pachythamnus |
| 释义 |
| image = | image_caption = | regnum = Plantae |unranked_divisio = Angiosperms |unranked_classis = Eudicots |unranked_ordo = Asterids |ordo = Asterales |familia = Asteraceae |subfamilia = Asteroideae |supertribus = Helianthodae |tribus = Eupatorieae[1] | genus = Pachythamnus | genus_authority = (R.M.King & H.Rob.) R.M.King & H.Rob. | synonyms_ref=[1][1] |synonyms=*Ageratina subgen. Pachythamnus R.M.King & H.Rob.
|binomial_authority =(B.L.Rob.) R.M.King & H.Rob. |binomial= Pachythamnus crassirameus |type_species_authority =B.L.Rob. |type_species= Eupatorium crassirameum[4] }}Pachythamnus is a genus of Mesoamerican flowering plants in the boneset tribe within the sunflower family.[2][3]
The only known species is Pachythamnus crassirameus, native to Guatemala, Nicaragua, El Salvador, and central and southern Mexico.[4] EtymologyAgeratina 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]References1. ^Tropicos, Pachythamnus (R.M. King & H. Rob.) R.M. King & H. Rob. {{Taxonbar|from=Q7122232}}{{Eupatorieae-stub}}2. ^1 [https://www.biodiversitylibrary.org/page/12890058#page/161/mode/1up King, Robert Merrill & Robinson, Harold Ernest. 1972. Phytologia 23(1): 153–154] in English 3. ^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. 4. ^1 2 Flann, C (ed) 2009+ Global Compositae Checklist {{webarchive|url=https://archive.is/20141106174748/http://dixon.iplantcollaborative.org/CompositaeWeb/Default.aspx?Page=AdvNameSearch |date=2014-11-06 }} 5. ^Gledhill, David (2008). "The Names of Plants". Cambridge University Press. {{ISBN|9780521866453}} (hardback), {{ISBN|9780521685535}} (paperback). pp 39 3 : Eupatorieae|Monotypic Asteraceae genera|Flora of North America |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。