Poaceae
Northern reedgrass
Calamagrostis inexpansa
- Family
- Poaceae
- Genus
- Calamagrostis
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Common names
By language (1)
- English
- Northern reedgrass
Synonyms
- Calamagrostis aculeolata (Hack.) Ohwi
- Calamagrostis americana (Vasey) Rydb. & Shear
- Calamagrostis breviseta var. lacustris Kearney
- Calamagrostis californica Kearney
- Calamagrostis canadensis var. arcta Stebbins
- Calamagrostis chordorrhiza A.E.Porsild
- Calamagrostis crassiglumis Thurb.
- Calamagrostis elongata (Kearney) Rydb.
- Calamagrostis expansa Rickett & Gilly
- Calamagrostis fernaldii Louis-Marie
- Calamagrostis hyperborea Lange
- Calamagrostis hyperborea var. americana (Vasey) Kearney
- Calamagrostis hyperborea var. elongata Kearney
- Calamagrostis hyperborea var. hyperborea
- Calamagrostis hyperborea var. stenodes Kearney
- Calamagrostis inexpansa subsp. barbulata (Kearney) Piper & Beattie
- Calamagrostis inexpansa var. barbulata Kearney
- Calamagrostis inexpansa var. brevior (Vasey) Stebbins
- Calamagrostis inexpansa var. cuprea Kearney
- Calamagrostis inexpansa var. inexpansa
- Calamagrostis inexpansa var. novae-angliae Stebbins
- Calamagrostis inexpansa var. robusta (Vasey) Stebbins
- Calamagrostis labradorica Kearney
- Calamagrostis lacustris (Kearney) Nash
- Calamagrostis lapponica var. brevipilis Stebbins
- Calamagrostis micrantha var. sierrae M.E.Jones
- Calamagrostis mongolica (Kitag.) Kitag.
- Calamagrostis mongolicola Kitag.
- Calamagrostis neglecta subsp. aculeolata (Hack.) T.Koyama
- Calamagrostis neglecta subsp. inexpansa (A.Gray) Tzvelev
- Calamagrostis neglecta var. aculeolata (Hack.) Miyabe & Kudô
- Calamagrostis neglecta var. crassiglumis (Thurb.) Beal
- Calamagrostis neglecta var. hyperborea (Lange) M.E.Jones
- Calamagrostis neglecta var. inexpansa (A.Gray) M.E.Jones
- Calamagrostis neglecta var. mongolica Kitag.
- Calamagrostis pickeringii var. lacustris (Kearney) Hitchc.
- Calamagrostis robusta (Vasey) Vasey
- Calamagrostis scopulorum var. bakeri Stebbins
- Calamagrostis stricta subsp. inexpansa (A.Gray) C.W.Greene
- Calamagrostis stricta var. aculeolata Hack.
and 13 more.
Photos

Photo: Forest and Kim Starr, CC BY 2.0, from Wikimedia Commons
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Sources: classification, synonyms from World Flora Online Plant List (2026-06, CC0 1.0); common names, popularity from Wikidata (2026-10-26, CC0 1.0). About our plant data.