familyPoaceae
subfamilyPoaceae subfam. Pooideae
tribePoaceae tribe Poeae
genusHelictotrichon
speciesHelictotrichon mortonianum
Difference between revisions of "Helictotrichon mortonianum"
Common names: Alpine oatgrass
Synonyms: Avena mortoniana unknown
Treatment appears in FNA Volume 24. Treatment on page 701.
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|distribution=Utah;Colo.;N.Mex.;Wyo. | |distribution=Utah;Colo.;N.Mex.;Wyo. | ||
| − | |discussion=<p | + | |discussion=<p>Helictotrichon mortonianum grows in alpine and subalpine meadows and summits, at 3000-4200 m. It is restricted to the central and southern Rocky Mountains of the contiguous United States.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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|basionyms= | |basionyms= | ||
|family=Poaceae | |family=Poaceae | ||
| + | |illustrator=Linda A. Vorobik and Hana Pazdírková | ||
|distribution=Utah;Colo.;N.Mex.;Wyo. | |distribution=Utah;Colo.;N.Mex.;Wyo. | ||
|reference=None | |reference=None | ||
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|special status= | |special status= | ||
| − | |source xml=https:// | + | |source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/314eb390f968962f596ae85f506b4b3db8683b1b/coarse_grained_fna_xml/V24/V24_993.xml |
|subfamily=Poaceae subfam. Pooideae | |subfamily=Poaceae subfam. Pooideae | ||
|tribe=Poaceae tribe Poeae | |tribe=Poaceae tribe Poeae | ||
Revision as of 16:10, 30 October 2019
Culms 5-20 cm. Ligules 0.5-1 mm, truncate to rounded, ciliate; blades 3-6 cm long, 1-2 mm wide, involute or convolute, strigose, particularly on the adaxial surfaces. Panicles 2-5(8) cm; branches erect, usually with 1 spikelet each. Spikelets 8-12 mm, with (1)2(3) florets. Glumes equal or nearly so, 8-11 mm, acuminate or awn-tipped, awns 0.3-0.5 mm; lowest lemmas 7-10 mm, 3-veined, apices 4-toothed, awns 10-16 mm; distal lemmas unawned or awned; anthers 1.5-2 mm. 2n = 14, 28.
Distribution
Utah, Colo., N.Mex., Wyo.
Discussion
Helictotrichon mortonianum grows in alpine and subalpine meadows and summits, at 3000-4200 m. It is restricted to the central and southern Rocky Mountains of the contiguous United States.
Selected References
None.
Lower Taxa
None.