Difference between revisions of "Achnatherum pinetorum"
FNA>Volume Importer |
imported>Volume Importer |
||
| (8 intermediate revisions by 2 users not shown) | |||
| Line 4: | Line 4: | ||
|publications= | |publications= | ||
|common_names=Pinewoods needlegrass | |common_names=Pinewoods needlegrass | ||
| + | |special_status={{Treatment/ID/Special_status | ||
| + | |code=E | ||
| + | |label=Endemic | ||
| + | }} | ||
|basionyms= | |basionyms= | ||
|synonyms={{Treatment/ID/Synonym | |synonyms={{Treatment/ID/Synonym | ||
|name=Stipa pinetorum | |name=Stipa pinetorum | ||
| − | |authority= | + | |authority= |
| + | |rank=species | ||
}} | }} | ||
|hierarchy=Poaceae;Poaceae subfam. Pooideae;Poaceae tribe Stipeae;Achnatherum;Achnatherum pinetorum | |hierarchy=Poaceae;Poaceae subfam. Pooideae;Poaceae tribe Stipeae;Achnatherum;Achnatherum pinetorum | ||
| Line 20: | Line 25: | ||
-->{{Treatment/Body | -->{{Treatment/Body | ||
|distribution=Colo.;N.Mex.;Utah;Calif.;Oreg.;Mont.;Wyo.;Ariz.;Idaho;Nev. | |distribution=Colo.;N.Mex.;Utah;Calif.;Oreg.;Mont.;Wyo.;Ariz.;Idaho;Nev. | ||
| − | |discussion=<p>Achnatherum pinetorum usually grows on rocky soil, in pinyon-juniper to subalpine associations, at 2100-3300 m. Its range extends from Oregon, Idaho, and Montana south to California, Nevada, and Colorado. It differs from A. webberi in its longer, persistent awns, and from A. lettermanii in its sharp calluses and longer lemma hairs.</p> | + | |discussion=<p><i>Achnatherum pinetorum</i> usually grows on rocky soil, in pinyon-juniper to subalpine associations, at 2100-3300 m. Its range extends from Oregon, Idaho, and Montana south to California, <i>Nevada</i>, and Colorado. It differs from <i>A. webberi</i> in its longer, persistent awns, and from <i>A. lettermanii</i> in its sharp calluses and longer lemma hairs.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
| Line 29: | Line 34: | ||
-->{{#Taxon: | -->{{#Taxon: | ||
name=Achnatherum pinetorum | name=Achnatherum pinetorum | ||
| − | |||
|authority=(M.E. Jones) Barkworth | |authority=(M.E. Jones) Barkworth | ||
|rank=species | |rank=species | ||
| Line 36: | Line 40: | ||
|basionyms= | |basionyms= | ||
|family=Poaceae | |family=Poaceae | ||
| + | |illustrator=Cindy Roché | ||
| + | |illustration copyright=Utah State University | ||
|distribution=Colo.;N.Mex.;Utah;Calif.;Oreg.;Mont.;Wyo.;Ariz.;Idaho;Nev. | |distribution=Colo.;N.Mex.;Utah;Calif.;Oreg.;Mont.;Wyo.;Ariz.;Idaho;Nev. | ||
|reference=None | |reference=None | ||
|publication title= | |publication title= | ||
|publication year= | |publication year= | ||
| − | |special status= | + | |special status=Endemic |
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/200273ad09963decb8fc72550212de541d86569d/coarse_grained_fna_xml/V24/V24_182.xml |
|subfamily=Poaceae subfam. Pooideae | |subfamily=Poaceae subfam. Pooideae | ||
|tribe=Poaceae tribe Stipeae | |tribe=Poaceae tribe Stipeae | ||
Latest revision as of 17:22, 11 May 2021
Plants tightly cespitose, not rhizomatous. Culms 14-50(80) cm tall, 0.4-0.9 mm thick, mostly glabrous, lower internodes often puberulent or pubescent, particularly below the nodes; nodes 2-3. Basal sheaths not becoming flat and ribbonlike with age, usually glabrous, throat sometimes with a few hairs, hairs about 0.2 mm; collars glabrous, including the sides; basal ligules 0.2-0.8 mm, truncate to rounded, membranous, glabrous; upper ligules to 2 mm, rounded; blades usually involute and 0.2-0.4 mm in diameter, 0.5-1 mm wide if flat, often arcuate distally, abaxial surfaces scabridulous, adaxial surfaces hairy, hairs about 0.1 mm. Panicles 4.5-20 cm long, 0.5-1 cm wide, contracted; branches appressed, lower branches 1-5 cm, with 2-7 spikelets. Glumes subequal, 7-11 mm long, 0.6-0.9 mm wide, lanceolate, not saccate; florets 3.5-5.5 mm long, 0.6-0.8 mm thick, fusiform, terete; calluses 0.4-0.6 mm, sharp; lemmas densely and evenly pilose, hairs at midlength 1.5-3.5 mm, apical hairs to 5 mm, apical lobes 0.3-2 mm, thin; awns 13-25 mm, persistent, twice-geniculate, first 2 segments scabrous; paleas 2.5-4 mm, from 2/3 as long as to equaling the lemmas, hairy; anthers 1.8-2.6 mm, dehiscent, not penicillate. Caryopses 2.5-4 mm, fusiform. 2n = 32.
Distribution
Colo., N.Mex., Utah, Calif., Oreg., Mont., Wyo., Ariz., Idaho, Nev.
Discussion
Achnatherum pinetorum usually grows on rocky soil, in pinyon-juniper to subalpine associations, at 2100-3300 m. Its range extends from Oregon, Idaho, and Montana south to California, Nevada, and Colorado. It differs from A. webberi in its longer, persistent awns, and from A. lettermanii in its sharp calluses and longer lemma hairs.
Selected References
None.