Difference between revisions of "Anthoxanthum arcticum"
imported>Volume Importer |
imported>Volume Importer |
||
| (One intermediate revision by the same user not shown) | |||
| Line 41: | Line 41: | ||
|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_1080.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 perennial; loosely ces¬pitose or the culms solitary, rhizomes elongate, 0.3-1 mm thick. Culms 5-26(35) cm. Sheaths glabrous; ligules 0.4-1.3 mm, obtuse; blades 2-25 cm long, 0.7-2 mm in diameter when rolled, involute to convolute, abaxial surfaces glabrous, adaxial surfaces pubescent. Panicles 1-3(4.5) cm long, 0.3-0.5 cm wide, spikelike, with 1-2 spikelets per branch. Spikelets 3.5-5 mm, green to purple; rachilla internodes about 0.1 mm, glabrous. Glumes subequal, 2.9-4.7 mm, shiny; lowest 2 florets staminate; lemmas sparsely hairy, acute or slightly notched, unawned or awned, awns to 1 mm; bisexual lemmas 2.9-4.4 mm, with sparse, spreading hairs towards the apices; anthers 1.5-3 mm. Caryopses about 2.5 mm. 2n = 28.
Discussion
Anthoxanthum arcticum is a coastal and lowland circumpolar species of the Alaskan, Canadian, and Russian arctic; it is absent from Greenland. It generally grows in wet tundra on acidic, peaty soils. In the warmest sectors of the western high arctic, it is rooted in mats of moss that are growing over carbonate substrates.
Selected References
None.