Sium is a genus of flowering plants in the family Apiaceae. It is widely distributed across Europe, Asia, Africa, and North America.[1] Plants of this genus are commonly called water parsnips.[2]
These are perennial herbs, including some fully aquatic plants and some species that grow near water. The branching stem roots at the nodes. The lower leaves are pinnate, divided into leaflets. They are borne on petioles that sheath the stem at their bases. The inflorescence is a compound umbel of flowers with white petals.[1]
There are about 12 species in the genus.[3][4]
Species include:[3]
Sium bracteatum jellico, large jellico[5]
Sium burchellii – dwarf jellico[6]
Sium frigidum
Sium latifolium – wideleaf water parsnip, great water parsnip
Sium medium
Sium ninsi
Sium repandum
Sium serra
Sium sisaroideum
Sium sisarum – skirret
Sium suave – common water parsnip, hemlock water parsnip
Sium tenue
^ abSium. Flora of China.
^Sium. Integrated Taxonomic Information System (ITIS).
^ abSpalik, K., et al. (2009). Generic delimitations within the Sium alliance (Apiaceae tribe Oenantheae) inferred from cpDNA rps16-5'trnk (UUU) and nrDNA ITS sequences. Taxon 58(3), 735-48.
^Spalik, K. and S. R. Downie. (2006). The evolutionary history of Sium sensu lato (Apiaceae): dispersal, vicariance, and domestication as inferred from ITS rDNA phylogeny. American Journal of Botany 93(5), 747-61.
^Lambdon, P.W.; Ellick, S. (2016). "Berula bracteata". IUCN Red List of Threatened Species. 2016: e.T43985A67378473. doi:10.2305/IUCN.UK.2016-1.RLTS.T43985A67378473.en. Retrieved 17 November 2021.
^Lambdon, P.W.; Ellick, S. (2016). "Berula burchellii". IUCN Red List of Threatened Species. 2016: e.T43986A67378501. doi:10.2305/IUCN.UK.2016-1.RLTS.T43986A67378501.en. Retrieved 17 November 2021.
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Sium bracteatum (known commonly as jellico and large jellico) is a species of flowering plant in the family Apiaceae. It is endemic to Saint Helena. It...
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