Difference between revisions of "Calamagrostis deschampsioides"
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| − | |distribution=Alaska;Nfld. | + | |distribution=Alaska;Nfld. and Labr. (Nfld.);Man.;N.W.T.;Nunavut;Ont.;Que.;Yukon |
| − | |discussion=<p>Calamagrostis deschampsioides is a halophyte that grows, in the Flora region, on coastal dunes and beach ridges, gravel beaches, and in brackish coastal marshes, sometimes with Carex lyngbyei, at or near sea level. Its distribution is circumboreal, extending in North America from the islands of the Bering Sea and coastal Alaska, including the panhandle as far south as 56° N latitude, across the arctic coast to Hudson Bay and northern Labrador. It also extends from the arctic coast of Europe to Siberia and Japan. The alpine habitat reported for the Japanese plants suggests that they might belong to a different taxon.</p> | + | |discussion=<p><i>Calamagrostis deschampsioides</i> is a halophyte that grows, in the Flora region, on coastal dunes and beach ridges, gravel beaches, and in brackish coastal marshes, sometimes with <i>Carex lyngbyei</i>, at or near sea level. Its distribution is circumboreal, extending in North America from the islands of the Bering Sea and coastal Alaska, including the panhandle as far south as 56° N latitude, across the arctic coast to Hudson Bay and northern Labrador. It also extends from the arctic coast of Europe to Siberia and Japan. The alpine habitat reported for the Japanese plants suggests that they might belong to a different taxon.</p> |
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name=Calamagrostis deschampsioides | name=Calamagrostis deschampsioides | ||
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|authority=Trin. | |authority=Trin. | ||
|rank=species | |rank=species | ||
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|basionyms= | |basionyms= | ||
|family=Poaceae | |family=Poaceae | ||
| − | |distribution=Alaska;Nfld. | + | |illustrator=Cindy Roché;Hana Pazdírková |
| + | |illustration copyright=Utah State University | ||
| + | |distribution=Alaska;Nfld. and Labr. (Nfld.);Man.;N.W.T.;Nunavut;Ont.;Que.;Yukon | ||
|reference=None | |reference=None | ||
|publication title= | |publication title= | ||
|publication year= | |publication year= | ||
|special status= | |special status= | ||
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/200273ad09963decb8fc72550212de541d86569d/coarse_grained_fna_xml/V24/V24_1014.xml |
|subfamily=Poaceae subfam. Pooideae | |subfamily=Poaceae subfam. Pooideae | ||
|tribe=Poaceae tribe Poeae | |tribe=Poaceae tribe Poeae | ||
Latest revision as of 16:21, 11 May 2021
Plants sometimes with sterile culms; loosely cespitose, with rhizomes 7+ cm long, 1 mm thick. Culms (10)15-45(60) cm, unbranched, smooth beneath the panicles; nodes 1-2. Sheaths and collars smooth; ligules (0.5)1-2.5(3) mm, truncate to obtuse, usually entire, sometimes lacerate; blades (2)3-8(15) cm long, (1)1.5-2.5(3) mm wide, flat or somewhat involute, abaxial surfaces smooth, adaxial surfaces smooth or slightly scabrous, glabrous or sparsely hairy. Panicles 3-10(12) cm long, 1-4.5 cm wide, pyramidal, open, erect, green to dark purple: branches (2)2.5-4(5.5) cm, spreading, smooth or sparsely scabrous, spikelets usually confined to the distal 1/2. Spikelets 4-5.5(7) mm; rachilla prolongations 1-2 mm, hairs (0.5)1-1.5 mm. Glumes rounded, usually smooth, sometimes scabrous along the midvein, lateral veins mostly obscure, apices acute to acuminate; callus hairs 2-3 mm, 0.4-0.7 times as long as the lemmas, abundant; lemmas 3.5^1.5(5.5) mm, 0.5-1(1.5) mm shorter than the glumes; awns 3-4.5(5.5) mm, attached to the lower 1/3-1/2 of the lemmas, usually exserted, rarely included within the glumes, slender but distinguishable from the callus hairs, weakly to strongly bent; anthers (1.5)2-2.5 mm. 2n = 28.
Distribution
Alaska, Nfld. and Labr. (Nfld.), Man., N.W.T., Nunavut, Ont., Que., Yukon
Discussion
Calamagrostis deschampsioides is a halophyte that grows, in the Flora region, on coastal dunes and beach ridges, gravel beaches, and in brackish coastal marshes, sometimes with Carex lyngbyei, at or near sea level. Its distribution is circumboreal, extending in North America from the islands of the Bering Sea and coastal Alaska, including the panhandle as far south as 56° N latitude, across the arctic coast to Hudson Bay and northern Labrador. It also extends from the arctic coast of Europe to Siberia and Japan. The alpine habitat reported for the Japanese plants suggests that they might belong to a different taxon.
Selected References
None.