View source for Parthenium integrifolium

{{Treatment/ID
|accepted_name=Parthenium integrifolium
|accepted_authority=Linnaeus
|publications={{Treatment/Publication
|title=Sp. Pl.
|place=2: 988. 1753
|year=1753
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Parthenium auriculatum
|authority=Britton
}} {{Treatment/ID/Synonym
|name=Parthenium hispidum
|authority=Rafinesque
}} {{Treatment/ID/Synonym
|name=Parthenium hispidum var. auriculatum
|authority=(Britton) Rollins
}} {{Treatment/ID/Synonym
|name=Parthenium integrifolium var. auriculatum
|authority=(Britton) Cornelius ex Cronquist
}} {{Treatment/ID/Synonym
|name=Parthenium integrifolium var. henryanum
|authority=Mears
}} {{Treatment/ID/Synonym
|name=Parthenium integrifolium var. hispidum
|authority=(Rafinesque) Mears
}} {{Treatment/ID/Synonym
|name=Parthenium integrifolium var. mabryanum
|authority=Mears
}} {{Treatment/ID/Synonym
|name=Parthenium radfordii
|authority=unknown
}}
|hierarchy=Asteraceae;Asteraceae tribe Heliantheae;Asteraceae (tribe Heliantheae) subtribe Ambrosiinae;Parthenium;Parthenium integrifolium
|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>[[Parthenium]]</div><div class="higher-taxon"><small>species</small>[[Parthenium integrifolium]]</div></div>
|volume=Volume 21
|mention_page=page 20
|treatment_page=page 22
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Perennials,</b> 30–60(–100+) cm. <b>Leaf</b> blades ovate to lanceolate, 30–350+ × 20–120+ mm, margins usually crenate to serrate, sometimes coarsely toothed or somewhat lobed (then mostly toward bases), faces hispid to hirtellous or ± scabrous, gland-dotted. <b>Heads</b> radiate, borne in corymbiform to paniculiform arrays. <b>Peduncles</b> 1–8(–12+) mm. <b>Phyllaries</b>: outer 5(–6) lanceolate to broadly ovate, 3–5 mm, inner 5(–6) ± orbiculate, 4–6 mm. <b>Pistillate</b> florets 5(–6); corolla laminae ovate to oblong or orbiculate, 1–2+ mm. <b>Disc</b> florets 15–35+. <b>Cypselae</b> ± obovoid, 3–4+ mm; pappus-like enations 0 or 2(–4), erect to spreading, ± subulate or threadlike, fragile, 0.3–0.6+ mm. <b>2n</b> = 72.</span><!--

-->{{Treatment/Body
|phenology=Flowering May–Sep.
|habitat=Glades and barrens, prairies, disturbed sites
|elevation=10–500 m
|distribution=Ala.;Ark.;Conn.;Ga.;Ill.;Ind.;Iowa.;Kans.;Ky.;La.;Mass.;Mich.;Minn.;Miss.;Mo.;N.Y.;N.C.;Ohio;Okla.;Pa.;S.C.;Tenn.;Tex.;Va.;W.Va.;Wis.
|discussion=<p>As evidenced by the synonymy, <i>Parthenium integrifolium</i> as here circumscribed has been variously partitioned by other taxonomists. For the present, I see no justification for segregating species from, or for formal recognition of infraspecific taxa within <i>P. integrifolium</i>.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Parthenium integrifolium
|author=
|authority=Linnaeus
|rank=species
|parent rank=genus
|synonyms=Parthenium auriculatum;Parthenium hispidum;Parthenium hispidum var. auriculatum;Parthenium integrifolium var. auriculatum;Parthenium integrifolium var. henryanum;Parthenium integrifolium var. hispidum;Parthenium integrifolium var. mabryanum;Parthenium radfordii
|basionyms=
|family=Asteraceae
|phenology=Flowering May–Sep.
|habitat=Glades and barrens, prairies, disturbed sites
|elevation=10–500 m
|distribution=Ala.;Ark.;Conn.;Ga.;Ill.;Ind.;Iowa.;Kans.;Ky.;La.;Mass.;Mich.;Minn.;Miss.;Mo.;N.Y.;N.C.;Ohio;Okla.;Pa.;S.C.;Tenn.;Tex.;Va.;W.Va.;Wis.
|reference=None
|publication title=Sp. Pl.
|publication year=1753
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V19-20-21/V21_34.xml
|tribe=Asteraceae tribe Heliantheae
|subtribe=Asteraceae (tribe Heliantheae) subtribe Ambrosiinae
|genus=Parthenium
|species=Parthenium integrifolium
}}<!--

-->[[Category:Treatment]][[Category:Parthenium]]