Juncus triglumis explained

Juncus triglumis, called the three-flowered rush, is a species of flowering plant in the genus Juncus, native to the subarctic and subalpine Northern Hemisphere.^{[1] [2]} It is typically found in calcareous tundra habitats and arcto-alpine fens.^[3] It is often found in association with Carex atrofusca and Carex bicolor in the so-called Caricion bicolori-atrofuscae alliance.^[4]

Subtaxa

The following subspecies are currently accepted:^[1]

• Juncus triglumis subsp. albescens (Lange) Hultén - Kamchatka and Chukotka in Far Eastern Russia, Alaska (including the Aleutians), all of Canada except the Yukon, the Rocky Mountains of the United States, and Greenland
• Juncus triglumis subsp. triglumis - Greenland, Iceland, the Faroes, Great Britain, Europe, Asia, Japan, Sakhalin, the Kurils, Alaska (not including the Aleutians), British Columbia, the Yukon and the Northwest Territories in Canada, and the Rocky Mountains of the United States

Notes and References

1. Web site: Juncus triglumis L. . . 2017 . Plants of the World Online . Board of Trustees of the Royal Botanic Gardens, Kew . 4 February 2021 .
2. Web site: Three-flowered Rush . Farmer . Carl . 17 July 2003 . plant-identification.co.uk . West Highland Flora . 4 February 2021 .
3. Arcto-Alpine Species at Their Niche Margin: The Western Carpathian Refugia of Juncus castaneus and J. triglumis in Slovakia . 2017 . Dítě . Daniel . Peterka . Tomáš . Dítětová . Zuzana . Hájková . Petra . Hájek . Michal . Annales Botanici Fennici . 54 . 1–3 . 67–82 . 10.5735/085.054.0311 . 89962452 .
4. Corresponding Caricion bicolori-atrofuscae Communities in Western Greenland, Northern Europe and the Central European Mountains . Dierßen . K. . Dierßen . Barbara . Dierssen . K. . Dierssen . B. . Vegetatio . 1985 . 59 . 1/3 . 151–157 . 20146178 . 10.1007/BF00055685 . 6006983 .