Sonchus laceratus, synonyms including Dendroseris lacerata and Thamnoseris lacerata, is a species of plants in the daisy family Asteraceae.[1] It is endemic to the Desventuradas Islands in the South Pacific, part of Chile.[2][3][4] It is commonly known as the pachycaul tree.

Sonchus laceratus
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Sonchus
Subgenus: Sonchus subg. Dendroseris
Species:
S. laceratus
Binomial name
Sonchus laceratus
(Phil.) S.C.Kim & Mejías[1]
Synonyms[1]
  • Dendroseris lacerata (Phil.) Hemsl.
  • Rea lacerata Phil.
  • Thamnoseris lacerata (Phil.) F.Phil.
  • Thamnoseris lobata I.M.Johnst.

Taxonomy

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The species was first described in 1870 by Rodolfo Amando Philippi as Rea lacerata.[5] In 1875, his son, Federico Philippi, transferred it to his new genus Thamnoseris as T. lacerata,[6][7] where it was the sole species. In 1885, William Hemsley transferred it to the genus Dendroseris as D. lacerata.[1] In 2012, based on molecular phylogenetic evidence, it was shown that Dendroseris was embedded within the genus Sonchus, and all its species were transferred to that genus, being placed in Sonchus subg. Dendroseris.[8]

References

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  1. ^ a b c d "Sonchus laceratus (Phil.) S.C.Kim & Mejías". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 2023-04-12.
  2. ^ Flann, C (ed) 2009+ Global Compositae Checklist Archived 2015-01-17 at archive.today
  3. ^ "Molecular Phylogenetics and Evolution (2007)" (PDF).
  4. ^ "San Félix-San Ambrosio Islands temperate forests". Terrestrial Ecoregions. World Wildlife Fund.
  5. ^ "Sonchus laceratus (Phil.) S.C.Kim & Mejías". The International Plant Names Index. Retrieved 2023-04-12.
  6. ^ "Thamnoseris F.Phil". The International Plant Names Index. Retrieved 2023-04-12.
  7. ^ "Thamnoseris lacerata F.Phil". The International Plant Names Index. Retrieved 2023-04-12.
  8. ^ Mejías, José A. & Kim, Seung-Chul (2012). "Taxonomic Treatment of Cichorieae (Asteraceae) Endemic to the Juan Fernández and Desventuradas Islands (SE Pacific)" (PDF). Annales Botanici Fennici. 49 (3): 171–178. Retrieved 2023-04-12.