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(First upload on August 13 2015. Last on September 23 2023) [ 日本語 | English ]

Eleocharis R. Br. (ハリイ) Eleocharis mamillata H. Lindb. Kuroharii (クロハリイ, 黒針藺), Kamchatka spikerush Life form: mat-forming, rhizomatous, perennial sedge Distribution: easern Asia, including Japan (Hokkaido, Honshu and Kyushu) and northern America Habitat: sunny wetlands, often near sea coasts

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 = 12 Synonyms: Scirpus kamtschaticus C.A. Mey. These two varieties are not often established: f. kamtschatica (ヒメハリイ), the type, hair on perianth = 4-5 f. reducta (Ohwi) Ohwi (クロハリイ, s.s.), hair on perianth = none or trace

Eleocharis kamtschatica in Hokkaido

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f. reducta (クロハリイ)

1 2
[1] at a riverside near Akkeshi Waterfowl Observation Center, eastern Hokkaido, on July 3 2014. [2] near Akanuma Pond on Kushiro Wetland, eastern Hokkaido, on June 28 2015.

f. kamtschatica (ヒメハリイ)

1 2 3
[1/2] in Abira wetland, central Hokkaido, on June 16 2020. [3] along the Yasuharu River (安春川) in Kotoni, Sapporo, on May 6 2023.