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(First upload on December 29 2015. Last on November 14 2023) [ 日本語 | English ]

Juncus L. (イグサ) Harikougaizekisyou (ハリコウガイゼキショウ, 針笄石菖), Wallich rush Lifeform: perennial rush Distribution: widespread in Asia and Oceania Habitat: wetlands, including artificially-constructed wetlands (e.g., ditches)

Stem: cylindrical without wing ↔ flat with wing = J. prismatocarpus Synonyms: Juncus koidzumii Satake

Juncus wallichianus in Hokkaido

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[1/2] along a walkboard to go Mokeuni Pond, Sarufutsu Village, northern Hokkaido, on August 27 2015. [3-6] along Atsuma Coast (浜厚真), central Hokkaido. [3/4] on October 1 2022. [5/6] near a pond on August 5 2023.