View source for Calamagrostis stricta subsp. inexpansa

{{Treatment/ID
|accepted_name=Calamagrostis stricta subsp. inexpansa
|accepted_authority=(A. Gray) C.W.
|publications=
|common_names=Northern reedgrass;Calamagrostide contractee
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Calamagrostis lacustris
|authority=
|rank=species
}} {{Treatment/ID/Synonym
|name=Calamagrostis inexpansa var. robusta
|authority=
|rank=variety
}} {{Treatment/ID/Synonym
|name=Calamagrostis inexpansa var. novae-angliae
|authority=
|rank=variety
}} {{Treatment/ID/Synonym
|name=Calamagrostis inexpansa var. brevior
|authority=
|rank=variety
}} {{Treatment/ID/Synonym
|name=Calamagrostis inexpansa var. barbulata
|authority=
|rank=variety
}} {{Treatment/ID/Synonym
|name=Calamagrostis inexpansa
|authority=
|rank=species
}} {{Treatment/ID/Synonym
|name=Calamagrostis fernaldii
|authority=
|rank=species
}} {{Treatment/ID/Synonym
|name=Calamagrostis chordorrhiza
|authority=
|rank=species
}} {{Treatment/ID/Synonym
|name=Calamagrostis canadensis var. acuminata
|authority=
|rank=variety
}} {{Treatment/ID/Synonym
|name=Calamagrostis crassiglumis
|authority=
|rank=species
}}
|hierarchy=Poaceae;Poaceae subfam. Pooideae;Poaceae tribe Poeae;Calamagrostis;Calamagrostis stricta;Calamagrostis stricta subsp. inexpansa
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Poaceae]]</div><div class="higher-taxon"><small>subfamily</small>[[Poaceae subfam. Pooideae]]</div><div class="higher-taxon"><small>tribe</small>[[Poaceae tribe Poeae]]</div><div class="higher-taxon"><small>genus</small>[[Calamagrostis]]</div><div class="higher-taxon"><small>species</small>[[Calamagrostis stricta]]</div><div class="higher-taxon"><small>subspecies</small>[[Calamagrostis stricta subsp. inexpansa]]</div></div>
|volume=Volume 24
|mention_page=
|treatment_page=page 730
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>apparently without sterile culms. <b>Culms</b> (29) 35-75(120) cm, usually scabrous, sometimes smooth. <b>Sheaths</b> and collars usually smooth, collars sometimes scabrous, rarely pubescent; ligules (0.5)2-5.5(6) mm; blades (5)11-24(34) cm long, (1.5)2-5(6) mm wide, flat, usually stiff, sometimes puberulent. <b>Panicles</b> (6)8-11(29) cm long, (0.8)1-2(2.8) cm wide, pale green, sometimes purple-tinged; branches (1.5)1.6-5(9.5) cm, spikelet-bearing to the base. <b>Spikelets</b> 3-4(5) mm; rachilla prolongations 1-1.5 mm. <b>Glumes</b> broadly keeled or rounded; callus hairs (2)2.5-3(4.5) mm, (0.5)0.7-0.9(1.3) times as long as the lemmas; lemmas 2.5-3.5(5) mm, 0.1-1(1.4) mm shorter than the glumes; awns 2-2.5 mm, attached to the lower 1/10 – 2/5 of the lemmas, rarely beyond the midpoint, straight or somewhat to strongly bent; anthers (0.9)1.5-1.8(2.4) mm, often poorly developed, sterile and indehiscent. <b>2n</b> = 28, 56, 58, 70, 84-±120.</span><!--

-->{{Treatment/Body
|discussion=<p><i>Calamagrostis stricta </i>subsp.<i> inexpansa</i> differs from <i></i>subsp.<i> stricta</i> in its more robust growth and coarser habit. In North America, it extends from Alaska to Labrador and Newfoundland and south to California, Arizona, Minnesota, Iowa, Ohio, and New York. It also grows in northeastern Asia. This subspecies usually grows in moist meadows, sphagnum bogs, and grasslands associated with rivers and streams, and less frequently on grassy slopes, in open woods, and beside sand dunes. It is noted to grow at the edge of, rather than in, wetlands.</p><!--
--><p>Plants of the Athabasca sand dunes in northern Saskatchewan, and similar habitats in northeast Alberta, have unusually long inflorescences and inflorescence branches.</p><!--
--><p>A taxon with glumes that are thick and rounded at the base, rather than keeled, has been separated out as <i>Calamagrostis</i> crassiglumis Thurb., with a distribution along the Pacific coast from British Columbia to California. We have examined many such specimens, including the isotype, an unusually short specimen, at 15 cm tall, from a "sphagnum swamp". As far as the two character states described above are concerned, the specimens do not appear to be distinct from other individuals of <i>C. stricta </i>subsp.<i> inexpansa</i>. The specimens do differ in other characters from typical <i>C. stricta </i>subsp.<i> inexpansa</i> in that C. crassiglumis is generally shorter, and the culm leaves may diverge from the stem at a greater angle and be broader. Further investigation is warranted.</p>
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-->{{#Taxon:
name=Calamagrostis stricta subsp. inexpansa
|authority=(A. Gray) C.W.
|rank=subspecies
|parent rank=species
|synonyms=Calamagrostis lacustris;Calamagrostis inexpansa var. robusta;Calamagrostis inexpansa var. novae-angliae;Calamagrostis inexpansa var. brevior;Calamagrostis inexpansa var. barbulata;Calamagrostis inexpansa;Calamagrostis fernaldii;Calamagrostis chordorrhiza;Calamagrostis canadensis var. acuminata;Calamagrostis crassiglumis
|basionyms=
|family=Poaceae
|illustrator=Cindy Roché;Hana Pazdírková
|illustration copyright=Utah State University
|reference=None
|publication title=
|publication year=
|special status=
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V24/V24_1033.xml
|subfamily=Poaceae subfam. Pooideae
|tribe=Poaceae tribe Poeae
|genus=Calamagrostis
|species=Calamagrostis stricta
|subspecies=Calamagrostis stricta subsp. inexpansa
}}<!--

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