Berula

Classification System: APG IV

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

Familia: Apiaceae
Subfamilia: Apioideae
Tribus: Oenantheae
Genus: Berula
Species: B. bracteata – B. burchellii – B. erecta – B. imbricata – B. repanda
Name

Berula W.D.J.Koch, Deutschl. Fl. (ed. 3) 2: 25, 433. (1826)

Berula erecta (Huds.) Coville, Contr. U.S. Natl. Herb. 4: 115. (1893) Original lectotype Berula angustifolia (L.) Koch (1826) nom. illeg.

Note: Circumscription Berula s.l. see Downie (et al.) (2008) and Spalik (et al.) (2009), but not all species are accepted by Hassler et al. (2019).
References

Koch, W.D.J. 1826. J.C. Röhlings Deutschlands Flora 2: 25, 433.
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(9): 1039–1064. DOI: 10.1139/B08-055 PDF Reference page.
Spalik, K., Downie, S.R. & Watson, M.F. 2009. Generic Delimitations within the Sium Alliance (Apiaceae Tribe Oenantheae) inferred from cpDNA rps16-5'trnk(UUU) and nrDNA ITS sequences. Taxon 58(3): 735–748. DOI: 10.1002/tax.583004 JSTOR PDF. Reference page.
Hardway, T.M., Spalik, K., Watson, M.F., Katz-Downie, D.S. & Downie, S.R. 2004. Circumscription of Apiaceae tribe Oenantheae. South African Journal of Botany 70(3): 393–406. DOI: 10.1016/S0254-6299(15)30222-2 PDF. Reference page.

Links

Hassler, M. 2018. Berula. World Plants: Synonymic Checklists of the Vascular Plants of the World In: Roskovh, 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. 23. Reference page.
International Plant Names Index. 2018. Berula. Published online. Accessed: Aug. 23 2018.
The Plant List 2013. Berula in The Plant List Version 1.1. Published on the internet. Accessed: 2018 Aug. 23.
Tropicos.org 2018. Berula. Missouri Botanical Garden. Published on the internet. Accessed: 2018 Aug. 23.

Vernacular names
English: Water Parsnip
polski: Potocznik
русский: Поручейничек
svenska: Bäckmärken

Berula is a cosmopolitan genus of flowering plants in the family Apiaceae, whose species are known as water parsnips,[1] as are some other plants in Apiaceae such as Sium latifolium and Sium suave. It is easily confused with the highly toxic water hemlock (Conium maculatum).

Berula species are perennial, aquatic to semi-aquatic, herbaceous plants. The leaves are usually oppositely arranged. The flowerheads are arranged in umbels of small white flowers. Berula erecta is a widespread aquatic plant with fern-like leaves, found across Eurasia, Africa, North America, and elsewhere.[1][2]
Taxonomy

As of February 2015, The Plant List accepts five species:

Berula bracteata (Roxb.) Spalik & S.R.Downie
Berula burchellii (Hook.f.) Spalik & S.R.Downie
Berula erecta (Huds.) Coville
Berula imbricata (Schinz) Spalik & S.R.Downie
Berula repanda (Welw. ex Hiern) Spalik & S.R.Downie

References

Calflora taxon report, University of California: Berula erecta
Pu Fading and Mark F. Watson. "Berula". Flora of China. 14. Retrieved 16 December 2018 – via eFloras.org, Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.