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Carex dioica

Carex dioica (*)

Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Monocots
Cladus: Commelinids
Ordo: Poales

Familia: Cyperaceae
Subfamilia: Cyperoideae
Tribus: Cariceae
Genus: Carex
Species: Carex dioica

Carex dioica L., Sp. Pl.: 972 (1753).


Vignea dioica (L.) Rchb. in J.C.Mössler & H.G.L.Reichenbach, Handb. Gewächsk. ed. 2, 3: 1604 (1830).
Physiglochis dioica (L.) Raf., Good Book: 27 (1840).
Psyllophora dioica (L.) Schur, Verh. Mitth. Siebenbürg. Vereins Naturwiss. Hermannstadt 4: 78 (1853).
Carex dioiscostrongyla St.-Lag., Ann. Soc. Bot. Lyon 7: 121 (1880), nom. superfl.
Carex laevis Hoppe, Bot. Taschenb. Anfänger Wiss. Apothekerkunst 11: 243 (1801), nom. illeg.
Carex linnaeana Host, Icon. Descr. Gram. Austriac. 3: 51, t. 77 (1805).
Carex linnaei Degl. in J.L.A.Loiseleur-Deslongchamps, Fl. Gall. 2: 627 (1807).
Carex dioica var. androgyna Gray, Nat. Arr. Brit. Pl. 2: 45 (1821 publ. 1822).
Carex dioica var. elongata Gray, Nat. Arr. Brit. Pl. 2: 45 (1821 publ. 1822).
Carex nigricans Dewey, Amer. J. Sci. Arts 29: 249 (1836), nom. illeg.
Carex custoriana Heer in J.Hegetschweiler-Bodmer, Fl. Schweiz: 906 (1840).
Carex dioica var. isogyna Fr., Novit. Fl. Suec. Mant. 3: 135 (1843).
Maukschia laevis Heuff., Flora 27: 527 (1844).
Carex dioica var. scabrella Fr., Summa Veg. Scand.: 73 (1845).
Carex dioica var. metteniana O.Lang, Linnaea 24: 495 (1851).
Carex dioica var. subcaespitosa O.Lang, Linnaea 24: 495 (1851).
Carex dioica f. metteniana (O.Lang) Asch., Fl. Brandenburg 1: 760 (1864).
Carex metteniana (O.Lang) C.B.Lehm. ex Schur, Enum. Pl. Transsilv.: 697 (1866).
Carex casteriana Heer ex Boott, Ill. Gen. Carex 4: 143 (1867), pro syn.
Carex dioica var. custoriana (Heer) Nyman, Consp. Fl. Eur.: 784 (1882).
Caricinella laevis (Heuff.) St.-Lag. in A.Cariot, Étude Fl., éd. 8, 2: 880 (1889).
Carex dioica subsp. custoriana (Heer) K.Richt., Pl. Eur. 1: 147 (1890).
Carex dioica subsp. isogyna (Fr.) K.Richt., Pl. Eur. 1: 147 (1890).
Carex chlamydea Norman, Forh. Vidensk.-Selsk. Kristiania 16: 45 (1893).
Carex dioica f. laxa Junge, Verh. Naturwiss. Vereins Hamburg, ser. 3, 14: 94 (1906).

Native distribution areas:

Continental: Europe
Austria, Baltic States, Belarus, Belgium, Central European Rus, Czechoslovakia, Denmark, East European Russia, Finland, France, Froyar, Germany, Great Britain, Iceland, Ireland, Italy, Netherlands, North European Russi, Northwest European R, Norway, Poland, Romania, South European Russi, Spain, Svalbard, Sweden, Switzerland, Ukraine, Yugoslavia
Continental: Asia-Temperate
Regional: Siberia
West Siberia

References: Brummitt, R.K. 2001. TDWG – World Geographical Scheme for Recording Plant Distributions, 2nd Edition
Primary references

Linnaeus, C. 1753. Species plantarum, exhibentes plantas rite cognitas, ad genera relatas, cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas. Tomus II. Pp. 561–1200, [1–30, index], [1, err.]. Impensis Laurentii Salvii, Holmiae [Stockholm]. BHL Reference page. : 972.


Govaerts, R. et al. 2020. Carex dioica in World Checklist of Selected Plant Families. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2020 Jan 16. Reference page.
International Plant Names Index. 2020. Carex dioica. Published online. Accessed: Jan 16 2020.
Govaerts, R. et al. 2020. Carex dioica in Kew Science Plants of the World online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2020 Jan 16. Reference page. 2020. Carex dioica. Missouri Botanical Garden. Published online. Accessed: 16 Jan 2020.
USDA, ARS, Germplasm Resources Information Network. Carex dioica in the Germplasm Resources Information Network (GRIN), U.S. Department of Agriculture Agricultural Research Service.

Vernacular names
Deutsch: Zweihäusige Segge
eesti: Kahekojane tarn
suomi: Äimäsara

Carex dioica, the dioecious sedge (a name it shares with Carex sterilis), is a species of flowering plant in the genus Carex, native to Iceland, the Faroes, Svalbard, nearly all of Europe, western Siberia, and the Altai.[2][3] It prefers to live in calcareous fens.[4]

Sp. Pl.: 972 (1753)
"Carex dioica L." Plants of the World Online. Board of Trustees of the Royal Botanic Gardens, Kew. 2017. Retrieved 7 January 2021.
"Carex dioica dioecious sedge". The Royal Horticultural Society. Retrieved 7 January 2021.
Proctor, M. C. F.; Bradshaw, M. E. (2013). "Scanning electron micrographs of leaves of British Carex species, 1. Introduction and some common sedges". New Journal of Botany. 3 (3): 197–204. doi:10.1179/2042349713Y.0000000029. S2CID 84280400.

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