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>Axonopus 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. Axonopus fissifolius and A. compressus are cultivated for forage in many countries; A. compressus 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://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/314eb390f968962f596ae85f506b4b3db8683b1b/coarse_grained_fna_xml/V25/V25_1436.xml
|subfamily=Poaceae subfam. Panicoideae
|tribe=Poaceae tribe Paniceae
|genus=Axonopus
}}<!--

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