View source for Conyza floribunda

{{Treatment/ID
|accepted_name=Conyza floribunda
|accepted_authority=Kunth in A. von Humboldt et al.
|publications={{Treatment/Publication
|title=in A. von Humboldt et al., Nov. Gen. Sp.
|place=4(fol.): 57. 1818
|year=1818
}}, {{Treatment/Publication
|place=4(qto.): 73. 1820
|year=1820
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Conyza bilbaoana
|authority=Remy
|rank=species
}} {{Treatment/ID/Synonym
|name=Conyza bonariensis var. leiotheca
|authority=(S. F. Blake) Cuatrecasas
|rank=variety
}}
|hierarchy=Asteraceae;Asteraceae tribe Astereae;Conyza;Conyza floribunda
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Asteraceae]]</div><div class="higher-taxon"><small>tribe</small>[[Asteraceae tribe Astereae]]</div><div class="higher-taxon"><small>genus</small>[[Conyza]]</div><div class="higher-taxon"><small>species</small>[[Conyza floribunda]]</div></div>
|volume=Volume 20
|mention_page=page 349
|treatment_page=page 350
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>erect, 30–150+ cm, branched mostly distally. <b>Leaves</b>: faces sparsely strigose to hispidulous or glabrate (margins ± ciliolate proximally, hairs erect, on nerves); proximal narrowly oblanceolate to linear, 50–100 × 5–15 mm, toothed or entire; distal similar, smaller, entire. <b>Heads</b> in paniculiform or corymbiform arrays. <b>Involucres</b> 3–4 mm. <b>Phyllaries</b> usually sparsely strigose (at least the outer; margins chartaceous to scarious), outer greenish, becoming reddish brown, lanceolate, shorter, inner stramineous to reddish, lance-attenuate. <b>Receptacles</b> 1–2+ mm diam. in fruit. <b>Pistillate</b> florets 30–40+; corollas ± equaling or surpassing styles, laminae 0 or to 0.3 mm. <b>Disc</b> florets 10–20+. <b>Cypselae</b> pale tan (usually some with reddish nerves), 1–1.5 mm, faces sparsely strigillose or glabrate; pappi of 15–25 white bristles 2–3 mm. <b>2n</b> = 18; 54 or 56.</span><!--

-->{{Treatment/Body
|phenology=Flowering summer–fall.
|habitat=Disturbed sites
|elevation=10–100 m
|distribution=Calif.;Fla.;Mexico;Central America;South America;Europe;Asia;Africa.
|discussion=<p><i>Conyza floribunda</i> is thought to be native to South America.</p><!--
--><p>In some floras of the past 50 or so years, <i>Conyza</i> bilbaoana has been treated as distinct from <i>C. floribunda</i>; in others, C. bilbaoana and <i>C. floribunda</i> have been treated as synonyms of <i>C. bonariensis</i>. For some traits (e.g., indument, phyllaries, florets), members of <i>C. floribunda</i> are intermediate to <i>C. bonariensis</i> and <i>C. canadensis</i>; some specimens that I have called <i>C. floribunda</i> may be hybrids. For example, a robust specimen from Santa Cruz Island, California, was originally labeled “<i>C. bonariensis</i> ×canadensis (?).” Locally (e.g., in Berkeley, California), <i>C. canadensis</i> usually comes into flower as <i>C. bonariensis</i> goes to seed. So far as sampled, <i>C. canadensis</i> is diploid; <i>C. bonariensis</i> is hexaploid. Pollen stainability in the Santa Cruz Island specimen is ca. 99%.</p><!--
--><p>If treated as a variety of <i>Conyza bonariensis</i>, the correct name for the taxon treated here as <i>C. floribunda</i> is <i>C. bonariensis</i> var. leiotheca.</p><!--
--><p>Some botanists, e.g., J. B. Marshall (1974), have treated the nomenclatural types of <i>Conyza floribunda</i> and C. sumatrensis (Retzius) E. Walker (= <i>Erigeron</i> sumatrensis Retzius) as conspecific.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Conyza floribunda
|authority=Kunth in A. von Humboldt et al.
|rank=species
|parent rank=genus
|synonyms=Conyza bilbaoana;Conyza bonariensis var. leiotheca
|basionyms=
|family=Asteraceae
|phenology=Flowering summer–fall.
|habitat=Disturbed sites
|elevation=10–100 m
|distribution=Calif.;Fla.;Mexico;Central America;South America;Europe;Asia;Africa.
|introduced=true
|reference=None
|publication title=in A. von Humboldt et al., Nov. Gen. Sp.;
|publication year=1818;1820
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/eaa6e58056e40c9ef614d8f47aea294977a1a5e9/coarse_grained_fna_xml/V19-20-21/V20_805.xml
|tribe=Asteraceae tribe Astereae
|genus=Conyza
|species=Conyza floribunda
}}<!--

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