Difference between revisions of "Deschampsia alpina"
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|synonyms={{Treatment/ID/Synonym | |synonyms={{Treatment/ID/Synonym | ||
|name=Deschampsia caespitosa subsp. alpina | |name=Deschampsia caespitosa subsp. alpina | ||
| − | |authority= | + | |authority= |
| + | |rank=subspecies | ||
}} | }} | ||
|hierarchy=Poaceae;Poaceae subfam. Pooideae;Poaceae tribe Poeae;Deschampsia;Deschampsia alpina | |hierarchy=Poaceae;Poaceae subfam. Pooideae;Poaceae tribe Poeae;Deschampsia;Deschampsia alpina | ||
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| − | |distribution=Greenland;Nfld. | + | |distribution=Greenland;Nfld. and Labr. (Nfld.);Nunavut;Que. |
|discussion=<p><i>Deschampsia alpina</i> grows in damp, rocky places, on calcareous substrates with low organic content, in Greenland and northeastern Canada and, outside the Flora region, in the mountains of Scandinavia and Russia in the Kola Peninsula and Novaya Zemlya. Plants of <i>D. alpina</i> differ from viviparous plants of <i>D. cespitosa</i> in having smooth, rather than scabrous, panicle branches (Murray, pers com. 2005).</p> | |discussion=<p><i>Deschampsia alpina</i> grows in damp, rocky places, on calcareous substrates with low organic content, in Greenland and northeastern Canada and, outside the Flora region, in the mountains of Scandinavia and Russia in the Kola Peninsula and Novaya Zemlya. Plants of <i>D. alpina</i> differ from viviparous plants of <i>D. cespitosa</i> in having smooth, rather than scabrous, panicle branches (Murray, pers com. 2005).</p> | ||
|tables= | |tables= | ||
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name=Deschampsia alpina | name=Deschampsia alpina | ||
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|authority=(L.) Roem. & Schult. | |authority=(L.) Roem. & Schult. | ||
|rank=species | |rank=species | ||
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|basionyms= | |basionyms= | ||
|family=Poaceae | |family=Poaceae | ||
| − | |distribution=Greenland;Nfld. | + | |illustrator=Cindy Roché |
| + | |illustration copyright=Utah State University | ||
| + | |distribution=Greenland;Nfld. and Labr. (Nfld.);Nunavut;Que. | ||
|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_899.xml |
|subfamily=Poaceae subfam. Pooideae | |subfamily=Poaceae subfam. Pooideae | ||
|tribe=Poaceae tribe Poeae | |tribe=Poaceae tribe Poeae | ||
Latest revision as of 16:25, 11 May 2021
Plants perennial; densely cespitose. Culms 8-45(65) cm, smooth, glabrous. Leaves form¬ing a basal tuft; sheaths smooth, glabrous; ligules 1.5-7.5 mm, glabrous, acute to acuminate, entire; blades 2-8 cm long, 0.5-2 mm wide, usually folded or flat, sometimes some loosely involute, both surfaces glabrous, smooth. Panicles (4)8-16 cm; branches 2-8 cm long (excluding the blades of bulbous florets), straight, ascending, smooth. Spikelets usually viviparous, their length varying with age, rarely bisexual and 4-6.3 mm. Glumes subequal, exceeding the lowest floret in sexual spikelets, keels smooth, apices acuminate; callus hairs about 0.8 mm; lemmas 5-7 mm, smooth, shiny, glabrous, unawned or awned, awns to 4 mm, straight, attached from below midlength to near the apices; paleas vestigial or absent. 2n = 52, 56.
Distribution
Greenland, Nfld. and Labr. (Nfld.), Nunavut, Que.
Discussion
Deschampsia alpina grows in damp, rocky places, on calcareous substrates with low organic content, in Greenland and northeastern Canada and, outside the Flora region, in the mountains of Scandinavia and Russia in the Kola Peninsula and Novaya Zemlya. Plants of D. alpina differ from viviparous plants of D. cespitosa in having smooth, rather than scabrous, panicle branches (Murray, pers com. 2005).
Selected References
None.