View source for Leuciva

{{Treatment/ID
|accepted_name=Leuciva
|accepted_authority=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
}}
|common_names=Woolly sumpweed
|basionyms=
|synonyms=
|hierarchy=Asteraceae;Asteraceae tribe Heliantheae;Asteraceae (tribe Heliantheae) subtribe Ambrosiinae;Leuciva
|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>[[Leuciva]]</div></div>
|etymology=Greek leuc-, white, and Iva, a related genus, perhaps alluding to white indument of leaves
|volume=Volume 21
|mention_page=page 9, 25
|treatment_page=page 29
}}<!--

--><span class="statement" id="st-d0_s0" data-properties="whole-organism some measurement;whole-organism duration"><b>Perennials </b>(sometimes flowering in first-year), 20–60+ cm.</span> <span class="statement" id="st-d0_s1" data-properties="stem orientation;stem architecture"><b>Stems </b>erect, branching from bases and/or distally.</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;abaxial face pubescence;adaxial face pubescence">blades lanceolate to oblanceolate, laciniately pinnately lobed, abaxial faces ± lanate, adaxial ± tomentose, both usually glanddotted.</span> <span class="statement" id="st-d0_s6" data-properties="head architecture or shape;head architecture or shape;array architecture"><b>Heads </b>discoid or disciform, in (ebracteate) paniculiform arrays.</span> <span class="statement" id="st-d0_s7" data-properties="involucre shape;involucre diameter"><b>Involucres </b>± hemispheric, 2–4+ mm diam.</span> <span class="statement" id="st-d0_s8" data-properties="phyllary duration;phyllary quantity;phyllary fusion;series atypical quantity;series quantity;outer phyllary quantity;outer phyllary growth form or texture;inner phyllary presence;inner phyllary quantity"><b>Phyllaries </b>persistent, 5+ in 1 (–2) series, distinct, outer 5 herbaceous, inner 0 or scarious to membranous.</span> <span class="statement" id="st-d0_s9" data-properties="receptacle shape;receptacle architecture"><b>Receptacles </b>convex, epaleate.</span> <span class="statement" id="st-d0_s10" data-properties="floret architecture;floret presence;floret quantity"><b>Pistillate </b>florets 0 or 3–5;</span> <span class="statement" id="st-d0_s11" data-properties="corolla coloration;corolla shape;corolla presence">corollas whitish, tubular, or 0.</span> <span class="statement" id="st-d0_s12" data-properties="floret architecture;floret quantity"><b>Functionally </b>staminate florets 5–12+;</span> <span class="statement" id="st-d0_s13" data-properties="corolla coloration;lobe quantity;lobe orientation">corollas whitish, funnelform, lobes 5, erect (filaments connate, anthers coherent or distinct).</span> <span class="statement" id="st-d0_s14" data-properties="receptacle shape;receptacle architecture"><b>Receptacles </b>convex, epaleate.</span> <span class="statement" id="st-d0_s15" data-properties="cypsela shape;cypsela shape"><b>Cypselae </b>pyriform, ± obcompressed, densely glanddotted;</span> <span class="statement" id="st-d0_s16" data-properties="">pappi 0.</span> <span class="statement" id="st-d0_s17" data-properties="pappus presence;x chromosome quantity">x = 18?</span><!--

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

--><!--

-->{{#Taxon:
name=Leuciva
|author=John L. Strother
|authority=Rydberg in N. L. Britton et al.
|rank=genus
|parent rank=subtribe
|synonyms=
|basionyms=
|family=Asteraceae
|illustrator=Barbara Alongi
|illustration copyright=Flora of North America Association
|distribution=sw United States;n Mexico
|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_53.xml
|tribe=Asteraceae tribe Heliantheae
|subtribe=Asteraceae (tribe Heliantheae) subtribe Ambrosiinae
|genus=Leuciva
|abaxial face pubescence=lanate
|adaxial face pubescence=tomentose
|array architecture=paniculiform
|blade shape=lobed;lanceolate;oblanceolate
|corolla coloration=whitish;whitish
|corolla presence=absent
|corolla shape=tubular
|cypsela shape=obcompressed;pyriform
|floret architecture=staminate;pistillate
|floret presence=absent
|floret quantity=5;12
|head architecture or shape=disciform;discoid
|inner phyllary presence=absent
|inner phyllary quantity=scarious to membranous
|involucre diameter=2mm;4mm
|involucre shape=hemispheric
|leaf architecture=petiolate
|leaf arrangement=alternate
|leaf position=cauline
|lobe orientation=erect
|lobe quantity=5
|outer phyllary growth form or texture=herbaceous
|outer phyllary quantity=5
|pappus presence=absent
|phyllary duration=persistent
|phyllary fusion=distinct
|receptacle architecture=epaleate;epaleate
|receptacle shape=convex;convex
|series atypical quantity=1;2
|series quantity=1
|stem architecture=branching
|stem orientation=erect
|whole-organism duration=perennial
|whole-organism some measurement=20cm;60cm
|x chromosome quantity=18
}}<!--

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