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4270-Sigesbeckia serrata.jpg
Sigesbeckia serrata
Scientific classification e
Kingdom: Plantae
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Tribe: Millerieae
Genus: Sigesbeckia
L. 1753 not J.G.Gleditsch 1764

Sigesbeckia (also Siegesbeckia) is a genus of annual plants in the aster family.[2][3] St. Paul's wort is a common name for some of the species.[4]


Sigesbeckia is named for a botanist Johann Georg Siegesbeck, who was a strong critic of Carl Linnaeus's botanic classification system. He was known to refer to it as "Loathsome Harlotry" because of the focus of the system upon the presence of (or lack of) sex organs in plants and their locations and groupings.[5]


Sigesbeckia is related to a group of South American plants variously known as subtribe Espeletiinae or the Espeletia complex, which include genera such as Axiniphyllum, Espeletia, Polymnia, Smallanthus, Rumfordia, Trigonospermum, and Unxia.[6][7]

Some African Sigesbeckia species were transferred, at least by some authors, to Guizotia.[8]



  1. ^ a b Flann, C (ed) 2009+ Global Compositae Checklist Archived 12 November 2014 at
  2. ^ "Sigesbeckia L." Digital Flora of Taiwan.
  3. ^ Linnaeus, Carl von. 1753. Species Plantarum 2: 900-901
  4. ^ "Sigesbeckia". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 14 November 2015.
  5. ^ "Carl Linnaeus". Biography of Linnaeus.
  6. ^ Rauscher, J. T. (2002). "Molecular phylogenetics of the Espeletia complex (Asteraceae): evidence from nrDNA ITS sequences on the closest relatives of an Andean adaptive radiation" (free full text). American Journal of Botany. 89 (7): 1074–84. doi:10.3732/ajb.89.7.1074. PMID 21665707.
  7. ^ Panero, Jose L.; Jansen, RK; Clevinger, JA (1999). "Phylogenetic Relationships of Subtribe Ecliptinae (Asteraceae: Heliantheae) Based on Chloroplast DNA Restriction Site Data" (free full text). American Journal of Botany. 86 (3): 413–427. doi:10.2307/2656762. JSTOR 2656762. PMID 10077503.
  8. ^ Bekele, Endashaw; Geleta, Mulatu; Dagne, Kifle; Jones, Abigail L.; Barnes, Ian; Bradman, Neil; Thomas, Mark G. (2007). "Molecular phylogeny of genus Guizotia (Asteraceae) using DNA sequences derived from ITS". Genetic Resources and Crop Evolution. 54 (7): 1419. doi:10.1007/s10722-006-9126-0.

External links[edit]

Media related to Sigesbeckia at Wikimedia Commons