Ruppia cirrhosa
| Ruppia cirrhosa | |
|---|---|
| |
Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Order: | Alismatales |
| Family: | Ruppiaceae |
| Genus: | Ruppia |
| Species: | R. cirrhosa
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| Binomial name | |
| Ruppia cirrhosa | |
| Synonyms[2] | |
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Ruppia cirrhosa is a species of aquatic plant known by the common names spiral ditchgrass[3] and spiral tasselweed.[4] It is native to Europe and western and Central Asia from Portugal and the British Isles to Scandinavia, the Altai, and Iran, India, eastern Asia from southeastern China to the Russian Far East, North Africa, southern Africa, western and central North America, and northern Argentina.[2] It grows in freshwater bodies, such as lakes. It is a thread-thin, grasslike perennial herb which grows from a rhizome anchored in the wet substrate. It produces a long, narrow inflorescence tipped with two tiny flowers. As the fruit develops the peduncle of the inflorescence curls into a neat spiral.[citation needed]
Taxonomy and nomenclature
[edit]A lectotype for this name is designated and the name is shown to be a homotypic synonym of R. maritima.[5] Consequently, R. spiralis has nomenclatural priority over R. cirrhosa for the long- and coiled-pedunculate Ruppia.
References
[edit]- ^ Short, F.T.; Carruthers, T.J.R.; Waycott, M.; Kendrick, G.A.; Fourqurean, J.W.; Callabine, A.; Kenworthy, W.J.; Dennison, W.C. (2010). "Ruppia cirrhosa". IUCN Red List of Threatened Species. 2010: e.T164280A5808308. doi:10.2305/IUCN.UK.2010-3.RLTS.T164280A5808308.en. Retrieved 16 June 2024.
- ^ a b "Ruppia cirrhosa (Petagna) Grande". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 26 May 2025.
- ^ NRCS. "Ruppia cirrhosa". PLANTS Database. United States Department of Agriculture (USDA). Retrieved 26 October 2015.
- ^ BSBI List 2007 (xls). Botanical Society of Britain and Ireland. Archived from the original (xls) on 2015-06-26. Retrieved 2014-10-17.
- ^ Ito, Y.; Ohi-Toma, T.; Nepi, C.; Santangelo, A.; Stinca, A.; Tanaka, N.; Murata, J. (2017). "Towards a better understanding of the Ruppia maritima complex (Ruppiaceae): Notes on the correct application and typification of the names R. cirrhosa and R. spiralis". Taxon. 66 (1): 167–171. doi:10.12705/661.11.
External links
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