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Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Monocots
Ordo: Alismatales

Familia: <a href="Juncaginaceae.html">Juncaginaceae</a>
Genus: Triglochin
Species: T. barrelieri – T. buchenaui – T. bulbosa – T. calcitrapa – T. centrocarpa – T. compacta – T. elongata – T. gaspensis – T. hexagona – T. isingiana – T. laxiflora – T. longicarpa – T. maritima – T. mexicana – T. milnei – T. minutissima – T. mucronata – T. muelleri – T. nana – T. palustris – T. protuberans – T. scilloides – T. stowardii – T. striata – T. trichophora – T. turrifera

Triglochin L., Sp. Pl. 1: 338. 1753.

Lectotype species: Triglochin palustris L. Sp. Pl. 1: 338. 1753 (designated by Britton, N. Amer. Fl. 17: 41. 30 Jun 1909 (as 'palustre'); approved by Hitchcock, Prop. Brit. Bot. 148. Aug 1929)


Juncago Ség., Pl. Veron. 3: 90. 1754, nom. superfl.
Lilaea Bonpl. in F.W.H.A.von Humboldt & A.J.A.Bonpland, Pl. Aequinoct. 1: 221. 1808.
Tristemon Raf., Amer. Monthly Mag. & Crit. Rev. 4: 192. 1819.
Abbotia Raf., New Fl. 1: 36. 1838.
Heterostylus Hook., Fl. Bor.-Amer. 2: 171. 1838.
Hexaglochin Nieuwl., Amer. Midl. Naturalist 3: 10. 1913.

Primary references

Linnaeus, C. 1753. Species Plantarum. Tomus I: 338. Reference page.

Additional references

Köcke, A.V., Mering, S. v., Mucina, L. & Kadereit, J.W. 2010. Revision of the Mediterranean and Southern African Triglochin bulbosa complex (Juncaginaceae). Edinburgh Journal of Botany 67(3): 353–398. DOI: 10.1017/S0960428610000041 ResearchGate Reference page.
Hitchcock, A.S. & Green, M.L. 1929. Standard species of Linnaean genera of Phanerogamae (1753–1754). pp. 111–195 in International Botanical Congress. Cambridge (England), 1930. Nomenclature. Proposals by British Botanists. His Majesty's Stationery Office, London. Biblioteca Digital Reference page.


Govaerts, R. et al. 2018. Triglochin in World Checklist of Selected Plant Families. The Board of Trustees of the Royal Botanic Gardens, Kew. Published on the internet. Accessed: 2018 Dec 6. Reference page.
International Plant Names Index. 2014. Triglochin. Published online. Accessed: Nov. 20 2014.
USDA, ARS, Germplasm Resources Information Network. Triglochin in the Germplasm Resources Information Network (GRIN), U.S. Department of Agriculture Agricultural Research Service. Accessed: 09-Oct-10.
Farr, E.R. & Zijlstra, G. (eds.) 1996 onwards. Triglochin in Index Nominum Genericorum (Plantarum). Accessed: 2018 Dec 6.

Vernacular names
čeština: Bařička
dansk: Trehage
Deutsch: Dreizacke
English: Arrowgrass
eesti: Õisluht
suomi: Suolakkeet
Nederlands: zoutgras
русский: Триостренник

Triglochin is a plant genus in the family Juncaginaceae described by Carl Linnaeus in 1753.[3][4] It is very nearly cosmopolitan in distribution, with species on every continent except Antarctica. North America has four accepted species, two of which can also be found in Europe: Triglochin palustris (marsh arrowgrass) and Triglochin maritima (sea arrowgrass).[5][6] Australia has many more.[1][7]

The most widely used common name for the genus is arrowgrass,[8] although these plants are not really grasses. Many of the common names for species make use of the term "arrowgrass", although there are exceptions: T. procera, for example, is commonly known as water ribbons.

Arrowgrasses are used as food plants by the larvae of some Lepidoptera species including the grey chi moth.


Triglochin barrelieri – Mediterranean
Triglochin buchenaui – Cape Province
Triglochin bulbosa – Cape Province
Triglochin calcitrapa – Western Australia
Triglochin centrocarpa – Australia
Triglochin compacta – Cape Province
Triglochin elongata – Cape Province, KwaZulu-Natal
Triglochin gaspensis – E Canada (Nfl NB PEI NS Qbc), Maine
Triglochin hexagona – Australia
Triglochin isingiana – Australia
Triglochin laxiflora – Mediterranean
Triglochin longicarpa – Western Australia
Triglochin maritima – Europe, Asia, North America, Algeria, Tunisia, Chile, Argentina
Triglochin mexicana – C + S Mexico
Triglochin milnei – from Tanzania to Angola + KwaZulu-Natal
Triglochin minutissima – Australia
Triglochin mucronata – Australia
Triglochin muelleri – Australia
Triglochin palustris – Europe, Asia, North America, Algeria, Morocco, Chile, Argentina
Triglochin protuberans – Western Australia
Triglochin scilloides – W Canada (BC Alb Sas), W United States (WA OR CA NV MT), Mexico, South America
Triglochin stowardii – Western Australia
Triglochin striata – Australia, New Zealand, Africa, United States, Bahamas, Cuba, South America
Triglochin trichophora – Australia
Triglochin turrifera – Australia

formerly included

now in other genera: Bulbine, Cycnogeton and Tetroncium

Triglochin alcockiae – Cycnogeton alcockiae – Australia
Triglochin dubia – Cycnogeton dubium – Australia, New Guinea
Triglochin huegelii – Cycnogeton huegelii – Western Australia
Triglochin linearis – Cycnogeton lineare – Western Australia
Triglochin magellanica – Tetroncium magellanicum – Tierra del Fuego, Falkland Is, Gough I
Triglochin maundii – Maundia triglochinoides – Australia
Triglochin microtuberosa – Cycnogeton microtuberosum – Australia
Triglochin multifructa – Cycnogeton multifructum – Australia
Triglochin procera – Cycnogeton procerum – Australia
Triglochin pterocarpa – Cycnogeton dubium – Australia, New Guinea
Triglochin racemosa – Bulbine semibarbata – Australia
Triglochin reflexa – Tetroncium magellanicum – Tierra del Fuego, Falkland Is, Gough I
Triglochin rheophila – Cycnogeton rheophilum – Australia
Triglochin triglochinoides – Maundia triglochinoides – Australia


Kew World Checklist of Selected Plant Families
Tropicos search for Tristemon
Linnaeus, Carl von. 1753. Species Plantarum 1: 338-33* in Latin
Tropicos, Triglochin L.
Flora of North America Vol. 22 Arrow-grass, troscart Triglochin Linnaeus
Altervista Flora Italiana, genere Triglochin includes photos plus European distribution maps
Flora of China Vol. 23 Page 105 水麦冬属 shui mai dong shu Triglochin Linnaeus
"Triglochin". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 15 December 2015.

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