View source for ×achnella ← ×achnella You do not have permission to edit this page, for the following reason: The action you have requested is limited to users in the group: Users. You can view and copy the source of this page. {{Treatment/ID |accepted_name=×achnella |accepted_authority=Barkworth |publications= |basionyms= |synonyms= |hierarchy=Poaceae;Poaceae subfam. Pooideae;Poaceae tribe Stipeae;×achnella |hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Poaceae]]</div><div class="higher-taxon"><small>subfamily</small>[[Poaceae subfam. Pooideae]]</div><div class="higher-taxon"><small>tribe</small>[[Poaceae tribe Stipeae]]</div><div class="higher-taxon"><small>genus</small>[[×achnella]]</div></div> |volume=Volume 24 |mention_page= |treatment_page=page 169 }}<!-- --><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>perennial; cespitose, not rhizomatous. <b>Culms</b> to 90 cm, erect, glabrous, not branching at the upper nodes; prophylls shorter than the sheaths. <b>Sheaths</b> mostly glabrous, margins sparsely ciliate, hairs longer distally; cleistogenes not present in the basal sheaths; collars without tufts of hair at the sides; auricles absent; ligules scarious, glabrous; blades of basal leaves to 40 cm long, 1-1.5 mm wide, convolute when dry, tapering to the narrowly acute apices, flag leaf blades longer than 10 mm, bases about as wide as the top of the sheaths. <b>Inflorescences</b> panicles. <b>Spikelets</b> 6-8.5 mm, with 1 floret; rachillas not prolonged beyond the base of the floret; disarticulation above the glumes, beneath the floret. <b>Glumes</b> saccate-lanceolate, tapering from above midlength into elongate apices, midveins extending to or nearly to the apices, apices narrowly acute to acuminate; lower glumes 6-8.5 mm; upper glumes 6.5-7.5 mm, slightly narrower than the lower glumes; florets 4-5 mm, lengths more than 3 times the widths; calluses about 0.7 mm, blunt; lemmas coriaceous, evenly hairy throughout, hairs 1-2 mm, apical hairs not longer than those below; awns twisted, not or once-geniculate, readily deciduous; paleas more than 2/3 as long as the lemmas, veins ending at the apices; anthers poorly developed, indehiscent, sometimes with 1 or 2 penicillate hairs.</span><!-- -->{{Treatment/Body |distribution=Alta.;B.C.;Man.;N.W.T.;Sask.;Yukon;Mont.;N.Dak.;Nebr. |discussion=<p>×Achnella comprises sterile hybrids between <i>Achnatherum</i> and <i>Nassella</i>. Only one such hybrid is known; it is restricted to the Flora region.</p> |tables= |references={{Treatment/Reference |id=johnson1943b |text=Johnson, B.L. and G.A. Rogler. 1943. A cytotaxonomic study of an intergeneric hybrid between Oryzopsis bymenoides and Stipa viridula. Amer. J. Bot. 30:49-56. }} }}<!-- --><!-- -->{{#Taxon: name=×achnella |author=Mary E. Barkworth; |authority=Barkworth |rank=genus |parent rank=tribe |synonyms= |basionyms= |family=Poaceae |illustrator=Cindy Roché |illustration copyright=Utah State University |distribution=Alta.;B.C.;Man.;N.W.T.;Sask.;Yukon;Mont.;N.Dak.;Nebr. |reference=johnson1943b |publication title= |publication year= |special status= |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V24/V24_232.xml |subfamily=Poaceae subfam. Pooideae |tribe=Poaceae tribe Stipeae |genus=×achnella }}<!-- -->[[Category:Treatment]][[Category:Poaceae tribe Stipeae]] Templates used on this page: Template:Poaceae (view source) Template:Treatment/AuthorLink (view source) Template:Treatment/Body (view source) Template:Treatment/Body/Maps (view source) Template:Treatment/ID (view source) Template:Treatment/Reference (view source) Return to ×achnella.