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(First upload on February 11 2013. Last on March 26 2019) [ 日本語 | English ]

Eleocharis R. Br. (ハリイ) Numaharii/o-numaharii (ヌマハリイ, s.l./オオヌマハリイ, 沼針藺/大沼針藺), soft-stem spikerush var. cyclocarpa Kitag. (オオヌマハリイ, s.s.) Life form: perennial sedge, producing long belowground stolons Distribution: widespread in Eurasia and othter regions Habitat: sunny wetlands, such as edges of ponds Field training on integrated environmental research (統合環境調査法実習) (fauna and flora 種リスト) Chromosome number: 2n = 20 Synonyms: Eleocharis mamillata H. Lindb. ssp. ussuriensis (Zinserl.) T. V. Egorova Eleocharis ussuriensis Zinserl.

Eleocharis mamillata is a widespread species in the temperate zone of Eurasia and North America. Populations in mountainous areas of Europe and Asia (the Pyrenees, Alps, Carpathians, Balkans, Ural, Caucasus, Altai) can be separated as subspecies austriaca differing mainly by the stylopodium shape from the nominate subspecies. Clear morphological criteria to create a separate infraspecific taxon in East Asia could not be found. (Gregor T. 2003. Eleocharis mamillata - distribution and infraspecific differentiation. Folia Geobotanica 38: 49-64)

Eleocharis mamillata in Aisa

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Hokkaido

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var. cyclocarpa. [1] at Abira wetland, central Hokkaido, on July 16 2012. [2-4] near a small artificial pond in Tomamu Resort, eastern Hokkaido, on June 24 2013. [5] along a walkboard in the post-mined peatland of Sarobetsu Mire, northern Hokkaido, on August 28 2018. [6] along the Yasuharu River (安春川) in Kotoni, Sapporo, on May 6 2023.

Northeastern China

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[1-3] in Jinchuan wetland, northeastern China, on June 11 2017.