View source for Hygroryza aristata

{{Treatment/ID
|accepted_name=Hygroryza aristata
|accepted_authority=(Retz.) Nees
|publications=
|common_names=Asian watergrass;Water stargrass
|basionyms=
|synonyms=
|hierarchy=Poaceae;Poaceae subfam. Ehrhartoideae;Poaceae tribe Oryzeae;Hygroryza;Hygroryza aristata
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Poaceae]]</div><div class="higher-taxon"><small>subfamily</small>[[Poaceae subfam. Ehrhartoideae]]</div><div class="higher-taxon"><small>tribe</small>[[Poaceae tribe Oryzeae]]</div><div class="higher-taxon"><small>genus</small>[[Hygroryza]]</div><div class="higher-taxon"><small>species</small>[[Hygroryza aristata]]</div></div>
|volume=Volume 24
|mention_page=
|treatment_page=page 46
}}<!--

--><span class="statement" id="st-d0_s0" data-properties="culm some measurement;culm growth form or location;culm architecture;culm course"><b>Culms </b>50-150 cm, floating, branched, flexuous;</span> <span class="statement" id="st-d0_s1" data-properties="node architecture;root arrangement">nodes rooting, roots feathery, whorled.</span> <span class="statement" id="st-d0_s2" data-properties="sheath pubescence;sheath architecture;sheath shape"><b>Sheaths </b>glabrous, open, inflated;</span> <span class="statement" id="st-d0_s3" data-properties="ligule presence;ligule quantity;ligule coloration;ligule architecture or shape">ligules absent or 0.5-0.8 mm, hyaline, truncate;</span> <span class="statement" id="st-d0_s4" data-properties="pseudopetiole some measurement">pseudopetioles shorter than 1 mm;</span> <span class="statement" id="st-d0_s5" data-properties="blade length;blade width;blade prominence or shape;base shape;apex shape">blades 2-8 cm long, 5-20 mm wide, flat, bases rounded to cordate, apices blunt to rounded.</span> <span class="statement" id="st-d0_s6" data-properties="panicle some measurement;panicle shape;branch quantity"><b>Panicles </b>3-8 cm, pyramidal, with 4-9 branches;</span> <span class="statement" id="st-d0_s7" data-properties="lower branch some measurement;lower branch arrangement;lower branch orientation;lower branch orientation;lower branch pubescence">lower branches 2-4 cm, whorled, spreading or deflexed, glabrous;</span> <span class="statement" id="st-d0_s8" data-properties="pedicel some measurement;pedicel presence">pedicels 0.2-2 mm, sometimes absent.</span> <span class="statement" id="st-d0_s9" data-properties="floret atypical some measurement;floret some measurement;floret shape"><b>Florets </b>(6) 7-18 mm (including the stipelike callus), narrowly lanceolate;</span> <span class="statement" id="st-d0_s10" data-properties="callus atypical some measurement;callus some measurement;callus shape">calluses (1) 2-10 mm, stipelike;</span> <span class="statement" id="st-d0_s11" data-properties="lemma some measurement;lemma pubescence or texture;lemma shape;vein pubescence;vein pubescence;margin pubescence;margin pubescence;awn some measurement">lemmas 5-8 mm, chartaceous, keeled, veins and margins with hairs, glabrous or pubescent between the veins, awns 5-14 mm;</span> <span class="statement" id="st-d0_s12" data-properties="palea pubescence or texture;palea pubescence;keel pubescence;keel pubescence">paleas as long as the lemmas, chartaceous, glabrous, keels ciliate or scabrous;</span> <span class="statement" id="st-d0_s13" data-properties="anther quantity;anther some measurement">anthers 6, about 3.5 mm.</span> <span class="statement" id="st-d0_s14" data-properties="caryopse some measurement;2n chromosome quantity"><b>Caryopses </b>about 3.5 mm. <b>2n</b> = 24.</span><!--

-->{{Treatment/Body
|discussion=<p>Hygroryza aristata is native to tropical Asia, where it has occasionally been used as forage for cattle (Bor 1960). It is sold for ponds and aquaria, where its long, feathery, adventitious roots have a decorative effect, but it has the potential to become a significant weed problem in the southern United States.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Hygroryza aristata
|authority=(Retz.) Nees
|rank=species
|parent rank=genus
|synonyms=
|basionyms=
|family=Poaceae
|illustrator=Sandy Long
|illustration copyright=Utah State University
|reference=None
|publication title=
|publication year=
|special status=
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V24/V24_47.xml
|subfamily=Poaceae subfam. Ehrhartoideae
|tribe=Poaceae tribe Oryzeae
|genus=Hygroryza
|species=Hygroryza aristata
|2n chromosome quantity=24
|anther quantity=6
|anther some measurement=3.5
|apex shape=blunt;rounded
|awn some measurement=5mm;14mm
|base shape=rounded;cordate
|blade length=2cm;8cm
|blade prominence or shape=flat
|blade width=5mm;20mm
|branch quantity=4;9
|callus atypical some measurement=1
|callus shape=stipelike
|callus some measurement=2mm;10mm
|caryopse some measurement=3.5
|culm architecture=branched
|culm course=flexuous
|culm growth form or location=floating
|culm some measurement=50cm;150cm
|floret atypical some measurement=6
|floret shape=lanceolate
|floret some measurement=7mm;18mm
|keel pubescence=scabrous;ciliate
|lemma pubescence or texture=chartaceous
|lemma shape=keeled
|lemma some measurement=5mm;8mm
|ligule architecture or shape=truncate
|ligule coloration=hyaline
|ligule presence=absent
|ligule quantity=0.5-0.8 mm
|lower branch arrangement=whorled
|lower branch orientation=deflexed;spreading
|lower branch pubescence=glabrous
|lower branch some measurement=2cm;4cm
|margin pubescence=pubescent;glabrous
|node architecture=rooting
|palea pubescence=glabrous
|palea pubescence or texture=chartaceous
|panicle shape=pyramidal
|panicle some measurement=3cm;8cm
|pedicel presence=absent
|pedicel some measurement=0.2mm;2mm
|pseudopetiole some measurement=1
|root arrangement=whorled
|sheath architecture=open
|sheath pubescence=glabrous
|sheath shape=inflated
|vein pubescence=pubescent;glabrous
}}<!--

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