Difference between revisions of "Poa abbreviata subsp. pattersonii"
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|synonyms={{Treatment/ID/Synonym | |synonyms={{Treatment/ID/Synonym | ||
|name=Poa abbreviata subsp. jordalii | |name=Poa abbreviata subsp. jordalii | ||
| − | |authority= | + | |authority= |
| + | |rank=subspecies | ||
}} {{Treatment/ID/Synonym | }} {{Treatment/ID/Synonym | ||
|name=Poa pattersonii | |name=Poa pattersonii | ||
| − | |authority= | + | |authority= |
| + | |rank=species | ||
}} {{Treatment/ID/Synonym | }} {{Treatment/ID/Synonym | ||
|name=Poa jordalii | |name=Poa jordalii | ||
| − | |authority= | + | |authority= |
| + | |rank=species | ||
}} | }} | ||
|hierarchy=Poaceae;Poaceae subfam. Pooideae;Poaceae tribe Poeae;Poa;Poa subg. Poa;Poa sect. Abbreviatae;Poa abbreviata;Poa abbreviata subsp. pattersonii | |hierarchy=Poaceae;Poaceae subfam. Pooideae;Poaceae tribe Poeae;Poa;Poa subg. Poa;Poa sect. Abbreviatae;Poa abbreviata;Poa abbreviata subsp. pattersonii | ||
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| − | |discussion=<p>Poa abbreviata subsp. pattersonii is an alpine taxon that extends from the Brooks Range, Alaska, to the Sierra Nevada, California, where it is rare, and through the Rocky Mountains to southern Colorado. It also grows in the Russian Far East. It is often confused in herbaria with P. glauca (p. 576), but differs in having predominantly intravaginal branching, an abundance of vegetative shoots, and usually shorter anthers. Plants from northern British Columbia to Alaska and Russia have been called P. abbreviata subsp. jordalii (A.E. Porsild) Hulten. They have webbed calluses, very short (occasionally nonexistent) lemma hairs, panicles often exserted well above the basal tuft of leaves, and particularly slender culms.</p> | + | |discussion=<p><i>Poa abbreviata </i>subsp.<i> pattersonii</i> is an alpine taxon that extends from the Brooks Range, Alaska, to the Sierra <i>Nevada</i>, California, where it is rare, and through the Rocky Mountains to southern Colorado. It also grows in the Russian Far East. It is often confused in herbaria with <i>P. glauca</i> (p. 576), but differs in having predominantly intravaginal branching, an abundance of vegetative shoots, and usually shorter anthers. Plants from northern British Columbia to Alaska and Russia have been called <i>P. abbreviata</i> subsp. jordalii (A.E. Porsild) Hulten. They have webbed calluses, very short (occasionally nonexistent) lemma hairs, panicles often exserted well above the basal tuft of leaves, and particularly slender culms.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Poa abbreviata subsp. pattersonii | name=Poa abbreviata subsp. pattersonii | ||
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|authority=(Vasey) Á. Löve, D. Love & B.M. Kapoor | |authority=(Vasey) Á. Löve, D. Love & B.M. Kapoor | ||
|rank=subspecies | |rank=subspecies | ||
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|family=Poaceae | |family=Poaceae | ||
|illustrator=Sandy Long | |illustrator=Sandy Long | ||
| + | |illustration copyright=Utah State University | ||
|reference=None | |reference=None | ||
|publication title= | |publication title= | ||
|publication year= | |publication year= | ||
|special status= | |special status= | ||
| − | |source xml=https:// | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V24/V24_819.xml |
|subfamily=Poaceae subfam. Pooideae | |subfamily=Poaceae subfam. Pooideae | ||
|tribe=Poaceae tribe Poeae | |tribe=Poaceae tribe Poeae | ||
Revision as of 21:24, 16 December 2019
Ligules 0.8-5.5 mm, smooth or scabrous, apices obtuse to acute. Spikelets rarely bulbiferous; florets rarely bulb-forming. Calluses usually webbed, rarely glabrous; lemmas long-villous along 3/4 of the keel and the marginal veins, rarely glabrous, but then the calluses also glabrous, intercostal regions glabrous or softly puberulent; anthers 0.6-1.2(1.8) mm, rarely vestigial. 2n = 42.
Discussion
Poa abbreviata subsp. pattersonii is an alpine taxon that extends from the Brooks Range, Alaska, to the Sierra Nevada, California, where it is rare, and through the Rocky Mountains to southern Colorado. It also grows in the Russian Far East. It is often confused in herbaria with P. glauca (p. 576), but differs in having predominantly intravaginal branching, an abundance of vegetative shoots, and usually shorter anthers. Plants from northern British Columbia to Alaska and Russia have been called P. abbreviata subsp. jordalii (A.E. Porsild) Hulten. They have webbed calluses, very short (occasionally nonexistent) lemma hairs, panicles often exserted well above the basal tuft of leaves, and particularly slender culms.
Selected References
None.