View source for Axonopus ← Axonopus 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=Axonopus |accepted_authority=P. Beauv. |publications= |basionyms= |synonyms= |hierarchy=Poaceae;Poaceae subfam. Panicoideae;Poaceae tribe Paniceae;Axonopus |hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Poaceae]]</div><div class="higher-taxon"><small>subfamily</small>[[Poaceae subfam. Panicoideae]]</div><div class="higher-taxon"><small>tribe</small>[[Poaceae tribe Paniceae]]</div><div class="higher-taxon"><small>genus</small>[[Axonopus]]</div></div> |volume=Volume 25 |mention_page= |treatment_page=page 565 }}<!-- --><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>perennial, rarely annual; cespitose, loosely tufted, or mat-forming, sometimes rhizomatous or stoloniferous. <b>Culms</b> 7-300 cm, not woody, often decumbent at the base, erect to ascending. <b>Sheaths</b> open; ligules membranous, truncate, ciliate; blades flat or convolute, usually obtuse. <b>Inflorescences</b> terminal, sometimes also axillary, panicles of 2-many, digitately, subdigitately, or racemosely arranged spikelike branches; branches triquetrous, spikelets subsessile or sessile, solitary, in 2 rows, lower lemmas appressed to the branch axes; disarticulation below the glumes. <b>Spikelets</b> dorsally compressed, with 2 florets; lower florets sterile or staminate; upper florets sessile, bisexual. <b>Lower</b> glumes absent; upper glumes and lower lemmas equal, membranous; lower paleas absent; upper lemmas indurate, usually glabrous, sometimes with an apical tuft of hairs, margins slightly involute, clasping the palea, apices acute to obtuse; upper paleas similar to the upper lemmas in texture. <b>Caryopses</b> ellipsoid, x = 10.</span><!-- -->{{Treatment/Body |distribution=Puerto Rico;Md.;Del.;Miss.;Tex.;La.;Calif.;Virgin Islands;Ala.;N.C.;S.C.;Va.;Ark.;Pacific Islands (Hawaii);Ga.;Okla.;Fla. |discussion=<p><i>Axonopus</i> is a genus of approximately 100 tropical and subtropical species, most of which are native to the Western Hemisphere. Three species are native to the Flora region; one additional species has been grown experimentally in Florida.</p><!-- --><p>All the species tend to grow in open habitats, often where the soil is somewhat impermeable and slightly flooded in the rainy season. <i>Axonopus fissifolius</i> and <i>A. compressus</i> are cultivated for forage in many countries; <i>A. compressus</i> is also used as a lawn grass. Both species are inclined to be weedy. The presence of rhizomes or stolons is affected by environmental condi¬tions, with plants growing in crowded conditions, e.g., lawns, rarely producing them.</p> |tables= |references={{Treatment/Reference |id=black1963a |text=Black, G.A. 1963. Grasses of the genus Axonopus (a taxonomic treatment) (ed. L.B. Smith). Advancing Frontiers PI Sci. 5:1-186. }} }}<!-- --><div class="treatment-key"> ==Key== <div class="treatment-key-group"> {| class="wikitable fna-keytable" |-id=key-0-1 |1 |Panicles with 30-100+ branches; lower branches 10-24 cm long; culms (50)100-300 cm tall |[[Axonopus scoparius|Axonopus scoparius]] |-id=key-0-1 |1 |Panicles with 2-7 branches; lower branches 1-15 cm long; culms 7-100 cm tall. |[[#key-0-2| > 2]] |-id=key-0-2 |2 |Spikelets 3.5-5.5 mm long; upper glumes glabrous; lower lemmas glabrous or sparsely pilose over the veins |[[Axonopus furcatus|Axonopus furcatus]] |-id=key-0-2 |2 |Spikelets 1.6-3.5 mm long; upper glumes and lower lemmas sparsely pilose on the margins or marginal veins. |[[#key-0-3| > 3]] |-id=key-0-3 |3 |Upper glumes and lower lemmas extending beyond the upper florets, forming acute to acuminate apices; blades 3-20 mm wide |[[Axonopus compressus|Axonopus compressus]] |-id=key-0-3 |3 |Upper glumes and lower lemmas not or scarcely extending beyond the upper florets, forming obtuse to subacute apices; blades 1.5-6 mm wide |[[Axonopus fissifolius|Axonopus fissifolius]] |} </div></div><!-- -->{{#Taxon: name=Axonopus |author=Mary E. Barkworth; |authority=P. Beauv. |rank=genus |parent rank=tribe |synonyms= |basionyms= |family=Poaceae |distribution=Puerto Rico;Md.;Del.;Miss.;Tex.;La.;Calif.;Virgin Islands;Ala.;N.C.;S.C.;Va.;Ark.;Pacific Islands (Hawaii);Ga.;Okla.;Fla. |reference=black1963a |publication title= |publication year= |special status= |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V25/V25_1436.xml |subfamily=Poaceae subfam. Panicoideae |tribe=Poaceae tribe Paniceae |genus=Axonopus }}<!-- -->[[Category:Treatment]][[Category:Poaceae tribe Paniceae]] 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 Axonopus.