familyPoaceae
subfamilyPoaceae subfam. Pooideae
genusAchnatherum
speciesAchnatherum nelsonii
subspeciesAchnatherum nelsonii subsp. dorei
Difference between revisions of "Achnatherum nelsonii subsp. dorei"
Common names: Dore's needlegrass
Synonyms: Stipa nelsonii var. dorei Stipa nelsonii subsp. dorei
Treatment appears in FNA Volume 24. Treatment on page 124.
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|synonyms={{Treatment/ID/Synonym | |synonyms={{Treatment/ID/Synonym | ||
|name=Stipa nelsonii var. dorei | |name=Stipa nelsonii var. dorei | ||
| − | |authority= | + | |authority= |
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|name=Stipa nelsonii subsp. dorei | |name=Stipa nelsonii subsp. dorei | ||
| − | |authority= | + | |authority= |
| + | |rank=subspecies | ||
}} | }} | ||
|hierarchy=Poaceae;Poaceae subfam. Pooideae;Poaceae tribe Stipeae;Achnatherum;Achnatherum nelsonii;Achnatherum nelsonii subsp. dorei | |hierarchy=Poaceae;Poaceae subfam. Pooideae;Poaceae tribe Stipeae;Achnatherum;Achnatherum nelsonii;Achnatherum nelsonii subsp. dorei | ||
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| − | |discussion=<p>Achnatherum nelsonii subsp. dorei grows from the southern Yukon Territory to California and Wyoming. In regions where both subspecies grow, subsp. dorei is at higher elevations than subsp. nelsonii. It differs from A. rohustum in the sparsely hairy collars of its flag leaves.</p><!-- | + | |discussion=<p><i>Achnatherum nelsonii </i>subsp.<i> dorei</i> grows from the southern Yukon Territory to California and Wyoming. In regions where both subspecies grow, <i></i>subsp.<i> dorei</i> is at higher elevations than <i></i>subsp.<i> nelsonii</i>. It differs from A. rohustum in the sparsely hairy collars of its flag leaves.</p><!-- |
| − | --><p>Reports of Achnatherum nelsonii subsp. dorei (identified as Stipa columbiana Macoun by many authors) from New Mexico and Arizona are probably based on A. perplexum, which differs in having sparse, narrow inflorescences and slightly recurved glumes. The two also differ in flowering time, A. nelsonii subsp. dorei flowering in late spring to early summer and A. perplexum in the fall. Achnatherum nelsonii subsp. nelsonii is present in New Mexico. Scagel and Maze (1984) concluded that putative hybrids between A. nelsonii subsp. dorei and A. richardsonii were merely large plants of A. nelsonii subsp. dorei that varied in the direction of A. richardsonii.</p> | + | --><p>Reports of <i>Achnatherum nelsonii </i>subsp.<i> dorei</i> (identified as <i>Stipa</i> columbiana Macoun by many authors) from New Mexico and Arizona are probably based on <i>A. perplexum</i>, which differs in having sparse, narrow inflorescences and slightly recurved glumes. The two also differ in flowering time, <i>A. nelsonii </i>subsp.<i> dorei</i> flowering in late spring to early summer and <i>A. perplexum</i> in the fall. <i>Achnatherum nelsonii </i>subsp.<i> nelsonii</i> is present in New Mexico. Scagel and Maze (1984) concluded that putative hybrids between <i>A. nelsonii </i>subsp.<i> dorei</i> and <i>A. richardsonii</i> were merely large plants of <i>A. nelsonii </i>subsp.<i> dorei</i> that varied in the direction of <i>A. richardsonii</i>.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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name=Achnatherum nelsonii subsp. dorei | name=Achnatherum nelsonii subsp. dorei | ||
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|authority=(Barkworth & J.R. Maze) Barkworth | |authority=(Barkworth & J.R. Maze) Barkworth | ||
|rank=subspecies | |rank=subspecies | ||
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|family=Poaceae | |family=Poaceae | ||
|illustrator=Cindy Roché | |illustrator=Cindy Roché | ||
| + | |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_170.xml |
|subfamily=Poaceae subfam. Pooideae | |subfamily=Poaceae subfam. Pooideae | ||
|tribe=Poaceae tribe Stipeae | |tribe=Poaceae tribe Stipeae | ||
Revision as of 20:18, 16 December 2019
Calluses blunt, glabrous tips 0.02-0.06 mm, dorsal boundary of the glabrous tip and the callus hairs almost straight to rounded; awns 19-31 mm.
Discussion
Achnatherum nelsonii subsp. dorei grows from the southern Yukon Territory to California and Wyoming. In regions where both subspecies grow, subsp. dorei is at higher elevations than subsp. nelsonii. It differs from A. rohustum in the sparsely hairy collars of its flag leaves.
Reports of Achnatherum nelsonii subsp. dorei (identified as Stipa columbiana Macoun by many authors) from New Mexico and Arizona are probably based on A. perplexum, which differs in having sparse, narrow inflorescences and slightly recurved glumes. The two also differ in flowering time, A. nelsonii subsp. dorei flowering in late spring to early summer and A. perplexum in the fall. Achnatherum nelsonii subsp. nelsonii is present in New Mexico. Scagel and Maze (1984) concluded that putative hybrids between A. nelsonii subsp. dorei and A. richardsonii were merely large plants of A. nelsonii subsp. dorei that varied in the direction of A. richardsonii.
Selected References
None.
Lower Taxa
None.
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