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Taxonavigation: Apiales 
Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Eudicots
Cladus: Core eudicots
Cladus: Asterids
Cladus: Euasterids II
Ordo: Apiales

Familia: Apiaceae
Subfamilia: Apioideae
Tribus: Oenantheae
Genus: Atrema
Species: A. americanum – A. testiculatum


Atrema DC. Coll. Mém. 5: 71–72, pl. 18. (1829)

  • Type species: Non designatus

Note: Downie (et al.) (2008) provide evidence for separating both these two North American species from the Old World Bifora (Coriandreae].


  • Candolle, A.P. de 1829. Collection de mémoires 5: 71–72, pl. 18.
  • Downie, S.R., Katz-Downie, D.S., Sun, F-J. & Lee, C-S. 2008. Phylogeny and biogeography of Apiaceae tribe Oenantheae inferred from nuclear rDNA ITS and cpDNA psbI–5′trnK(UUU) sequences, with emphasis on the North American Endemics clade. Botany 86: 1039–1064. DOI: 10.1139/B08-055 PDF Reference page
  • Hassler, M. 2018. Atrema. World Plants: Synonymic Checklists of the Vascular Plants of the World (2019). In: Roskov Y., Abucay L., Orrell T., Nicolson D., Bailly N., Kirk P., Bourgoin T., DeWalt R.E., Decock W., De Wever A., Nieukerken E. van, Zarucchi, J., Penev L., eds. 2018. Species 2000 & ITIS Catalogue of Life. Published on the internet. Accessed: 2018 Aug. 25.
  • 2014. Atrema . Missouri Botanical Garden. Published on the internet. Accessed: 2014 Apr. 18.