View source for Chorisiva

{{Treatment/ID
|accepted_name=Chorisiva
|accepted_authority=(A. Gray) Rydberg in N. L. Britton et al.
|publications={{Treatment/Publication
|title=in N. L. Britton et al., N. Amer. Fl.
|place=33: 8. 1922
|year=1922
}}
|basionyms={{Treatment/ID/Basionym
|name=Iva sect. Chorisiva
|authority=A. Gray
|rank=section
|publication_title=in A. Gray et al., Syn. Fl. N. Amer.
|publication_place=1(2): 247. 1884
}}
|synonyms=
|hierarchy=Asteraceae;Asteraceae tribe Heliantheae;Asteraceae (tribe Heliantheae) subtribe Ambrosiinae;Chorisiva
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Asteraceae]]</div><div class="higher-taxon"><small>tribe</small>[[Asteraceae tribe Heliantheae]]</div><div class="higher-taxon"><small>subtribe</small>[[Asteraceae (tribe Heliantheae) subtribe Ambrosiinae]]</div><div class="higher-taxon"><small>genus</small>[[Chorisiva]]</div></div>
|etymology=Greek choris -, separate, and Iva, a related genus; allusion recondite, perhaps “separate from Iva ” or to “scattered” arrangement of heads
|volume=Volume 21
|mention_page=page 9, 25
|treatment_page=page 31
}}<!--

--><span class="statement" id="st-d0_s0" data-properties="whole-organism atypical some measurement;whole-organism some measurement;whole-organism duration"><b>Annuals,</b> 5–25 (–40) cm.</span> <span class="statement" id="st-d0_s1" data-properties="stem orientation;stem architecture"><b>Stems </b>erect, diffusely branched.</span> <span class="statement" id="st-d0_s2" data-properties=""><b>Leaves </b>cauline;</span> <span class="statement" id="st-d0_s3" data-properties="">mostly alternate;</span> <span class="statement" id="st-d0_s4" data-properties="leaf position;leaf arrangement;leaf architecture">petiolate;</span> <span class="statement" id="st-d0_s5" data-properties="blade shape;blade shape;ultimate margin shape;ultimate margin shape;face relief">blades ovate or deltate to lanceolate, usually 1–2-pinnately lobed (lobes lanceovate to linear), ultimate margins entire or toothed, faces ± scabrellous, usually glanddotted.</span> <span class="statement" id="st-d0_s6" data-properties="head architecture or shape;head arrangement"><b>Heads </b>± discoid, mostly borne singly (in leaf-axils or remote from axils, ± scattered).</span> <span class="statement" id="st-d0_s7" data-properties="involucre shape;involucre diameter"><b>Involucres </b>± turbinate to campanulate, 2–3+ mm diam.</span> <span class="statement" id="st-d0_s8" data-properties="phyllary duration;phyllary quantity;phyllary fusion;series quantity;outer phyllary quantity;outer phyllary growth form or texture;inner phyllary texture;inner phyllary pubescence"><b>Phyllaries </b>persistent, 3–8+ in 1–2+ series, distinct, outer 3+ herbaceous, inner scarious to membranous, glabrous.</span> <span class="statement" id="st-d0_s9" data-properties="receptacle shape"><b>Receptacles </b>convex;</span> <span class="statement" id="st-d0_s10" data-properties="palea shape;palea texture;tip shape;tip pubescence;tip pubescence">paleae linear to setiform, membranous, usually with dilated, strigillose or ciliate tips.</span> <span class="statement" id="st-d0_s11" data-properties="floret architecture;floret atypical quantity;floret quantity"><b>Pistillate </b>florets 2–3 (–5);</span> <span class="statement" id="st-d0_s12" data-properties="corolla coloration;corolla shape">corollas yellowish, tubular.</span> <span class="statement" id="st-d0_s13" data-properties="floret architecture;floret quantity"><b>Functionally </b>staminate florets 5–10+;</span> <span class="statement" id="st-d0_s14" data-properties="corolla coloration;corolla pubescence;lobe quantity;lobe orientation">corollas yellowish, funnelform, strigillose and glanddotted distally, lobes 5, erect (filaments ± connate, anthers weakly coherent or distinct).</span> <span class="statement" id="st-d0_s15" data-properties="cypsela shape;cypsela shape;cypsela relief;cypsela relief;cypsela pubescence"><b>Cypselae </b>obovoid, obcompressed, smooth or corky-tuberculate, glabrous (not corky-winged, not glanddotted);</span> <span class="statement" id="st-d0_s16" data-properties="pappus presence">pappi 0.</span><!--

-->{{Treatment/Body
|distribution=sw United States
|discussion=<p>Species 1.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Chorisiva
|author=John L. Strother
|authority=(A. Gray) Rydberg in N. L. Britton et al.
|rank=genus
|parent rank=subtribe
|synonyms=
|basionyms=Iva sect. Chorisiva
|family=Asteraceae
|distribution=sw United States
|reference=None
|publication title=in N. L. Britton et al., N. Amer. Fl.
|publication year=1922
|special status=
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V19-20-21/V21_57.xml
|tribe=Asteraceae tribe Heliantheae
|subtribe=Asteraceae (tribe Heliantheae) subtribe Ambrosiinae
|genus=Chorisiva
|blade shape=lobed;deltate;lanceolate
|corolla coloration=yellowish;yellowish
|corolla pubescence=strigillose
|corolla shape=tubular
|cypsela pubescence=glabrous
|cypsela relief=corky-tuberculate;smooth
|cypsela shape=obcompressed;obovoid
|face relief=scabrellous
|floret architecture=staminate;pistillate
|floret atypical quantity=3;5
|floret quantity=5;10
|head architecture or shape=discoid
|head arrangement=singly
|inner phyllary pubescence=glabrous
|inner phyllary texture=scarious;membranous
|involucre diameter=2mm;3mm
|involucre shape=less turbinate;campanulate
|leaf architecture=petiolate
|leaf arrangement=alternate
|leaf position=cauline
|lobe orientation=erect
|lobe quantity=5
|outer phyllary growth form or texture=herbaceous
|palea shape=linear;setiform
|palea texture=membranous
|pappus presence=absent
|phyllary duration=persistent
|phyllary fusion=distinct
|phyllary quantity=3;8
|receptacle shape=convex
|series quantity=1;2
|stem architecture=branched
|stem orientation=erect
|tip pubescence=ciliate;strigillose
|tip shape=dilated
|ultimate margin shape=toothed;entire
|whole-organism atypical some measurement=25cm;40cm
|whole-organism duration=annual
|whole-organism some measurement=5cm;25cm
}}<!--

-->[[Category:Treatment]][[Category:Asteraceae (tribe Heliantheae) subtribe Ambrosiinae]]