View source for Axonopus

{{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://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V25/V25_1436.xml
|subfamily=Poaceae subfam. Panicoideae
|tribe=Poaceae tribe Paniceae
|genus=Axonopus
}}<!--

-->[[Category:Treatment]][[Category:Poaceae tribe Paniceae]]