Beckwithia

Life-forms

Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Eudicots
Ordo: Ranunculales

Familia: Ranunculaceae
Subfamilia: Ranunculoideae
Tribus: Ranunculeae
Genus: Beckwithia
Species: B. andersonii
Name

Beckwithia Jeps., Erythea 6: 97. (1898)

Typus: B. austinae Jeps. = Beckwithia andersonii

Note: In spite of Emadzade et al. (2010) often found in synonymy with Ranunculus.
References

Emadzade, K., Lehnebach, C.A., Lockhart, P.J. & Hörandl, E. 2010. A molecular phylogeny, morphology and classification of genera of Ranunculeae (Ranunculaceae). Taxon 59(3): 809–828. DOI: 10.1002/tax.593011 JSTOR PDF Reference page.
Govaerts, R. et al. 2021. Beckwithia in Kew Science Plants of the World online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published on the internet. Accessed: 2021 Oct. 18. Reference page. = Ranunculus
International Plant Names Index. 2021. 18. Published online. Accessed: Oct. 2021.
Paun, O., Lehnebach, C.A., Johansson, J.T., Lockhart, P.J. & Hörandl, E. 2005. Phylogenetic relationships and biogeography of Ranunculus and allied genera (Ranunculaceae) in the Mediterranean region and in the European Alpine System. Taxon 54(4): 911–930. DOI: 10.2307/25065478 JSTOR ResearchGate Reference page.

Vernacular names

Beckwithia is a genus of plants of the buttercup family. Most botanists consider it synonymous to a clade consisting of Ranunculus glacialis[1] and Ranunculus andersonii. B. glacialis has several distinct forms that may also be considered subspecies or closely related species. However, molecular studies have supported the placement of B. glacialis and B. camissonis within Ranunculus, distant from B. andersonii.[2][3]
Taxa

B. andersonii (A.Gray) Jeps. (= Ranunculus andersonii), Anderson's buttercup, native to the Western United States
B. glacialis subsp. glacialis (L.) Á.Löve & D.Löve (= Ranunculus glacialis), the glacier buttercup, occurring in boreal and alpine areas of Europe (including Iceland, Jan Mayen and Svalbard)
B. glacialis subsp. alaskensis Jurtz., D. Murray & S. Kelso (= Ranunculus glacialis subsp. alaskensis), Alaskan glacier buttercup, that is endemic in the Kigluaik Mountains of the Seward Peninsula, Alaska[1]
B. camissonis (Schltdl.) Tolm. (= Ranunculus glacialis subsp. camissonis), that occurs on either side of the Bering Strait, in Siberia and in Alaska[1]

References

"Alaskan glacier buttercup" (PDF). Alaska Natural Heritage Program.
Elvira Hörandl, et. al. Phylogenetic relationships and evolutionary traits in Ranunculus s.l. (Ranunculaceae) inferred from ITS sequence analysis. Molecular Phylogenetics and Evolution 36 (2005) 305–327.
Khatere Emadzade, et. al. A molecular phylogeny, morphology and classification of genera of Ranunculeae (Ranunculaceae). Taxon. 59: 809–828 2010