Sium

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Sium
Sium suave var nipponicum1.jpg
Sium suave
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Apiales
Family: Apiaceae
Genus: Sium
L.

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]

References[edit]

  1. ^ a b Sium. Flora of China.
  2. ^ Sium. Integrated Taxonomic Information System (ITIS).
  3. ^ a b Spalik, 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.
  4. ^ 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.
  5. ^ Cairns-Wicks, R. 2003. Sium bracteatum. In: IUCN 2013. IUCN Red List of Threatened Species. Version 2013.1. Downloaded on 22 August 2013.
  6. ^ Cairns-Wicks, R. 2003. Sium burchellii. In: IUCN 2013. IUCN Red List of Threatened Species. Version 2013.1. Downloaded on 22 August 2013.

External links[edit]