Difference between revisions of "Parthenium integrifolium"
Sp. Pl. 2: 988. 1753.
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|name=Parthenium auriculatum | |name=Parthenium auriculatum | ||
|authority=Britton | |authority=Britton | ||
− | }}{{Treatment/ID/Synonym | + | }} {{Treatment/ID/Synonym |
|name=Parthenium hispidum | |name=Parthenium hispidum | ||
|authority=Rafinesque | |authority=Rafinesque | ||
− | }}{{Treatment/ID/Synonym | + | }} {{Treatment/ID/Synonym |
|name=Parthenium hispidum var. auriculatum | |name=Parthenium hispidum var. auriculatum | ||
|authority=(Britton) Rollins | |authority=(Britton) Rollins | ||
− | }}{{Treatment/ID/Synonym | + | }} {{Treatment/ID/Synonym |
|name=Parthenium integrifolium var. auriculatum | |name=Parthenium integrifolium var. auriculatum | ||
|authority=(Britton) Cornelius ex Cronquist | |authority=(Britton) Cornelius ex Cronquist | ||
− | }}{{Treatment/ID/Synonym | + | }} {{Treatment/ID/Synonym |
|name=Parthenium integrifolium var. henryanum | |name=Parthenium integrifolium var. henryanum | ||
|authority=Mears | |authority=Mears | ||
− | }}{{Treatment/ID/Synonym | + | }} {{Treatment/ID/Synonym |
|name=Parthenium integrifolium var. hispidum | |name=Parthenium integrifolium var. hispidum | ||
|authority=(Rafinesque) Mears | |authority=(Rafinesque) Mears | ||
− | }}{{Treatment/ID/Synonym | + | }} {{Treatment/ID/Synonym |
|name=Parthenium integrifolium var. mabryanum | |name=Parthenium integrifolium var. mabryanum | ||
|authority=Mears | |authority=Mears | ||
− | }}{{Treatment/ID/Synonym | + | }} {{Treatment/ID/Synonym |
|name=Parthenium radfordii | |name=Parthenium radfordii | ||
|authority=unknown | |authority=unknown | ||
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|elevation=10–500 m | |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. | |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, Parthenium integrifolium 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 P. integrifolium.</p> | + | |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= | |tables= | ||
|references= | |references= | ||
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|publication year=1753 | |publication year=1753 | ||
|special status= | |special status= | ||
− | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V19-20-21/V21_34.xml |
|tribe=Asteraceae tribe Heliantheae | |tribe=Asteraceae tribe Heliantheae | ||
|subtribe=Asteraceae (tribe Heliantheae) subtribe Ambrosiinae | |subtribe=Asteraceae (tribe Heliantheae) subtribe Ambrosiinae |
Revision as of 16:34, 18 September 2019
Perennials, 30–60(–100+) cm. Leaf 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. Heads radiate, borne in corymbiform to paniculiform arrays. Peduncles 1–8(–12+) mm. Phyllaries: outer 5(–6) lanceolate to broadly ovate, 3–5 mm, inner 5(–6) ± orbiculate, 4–6 mm. Pistillate florets 5(–6); corolla laminae ovate to oblong or orbiculate, 1–2+ mm. Disc florets 15–35+. Cypselae ± obovoid, 3–4+ mm; pappus-like enations 0 or 2(–4), erect to spreading, ± subulate or threadlike, fragile, 0.3–0.6+ mm. 2n = 72.
Phenology: Flowering May–Sep.
Habitat: Glades and barrens, prairies, disturbed sites
Elevation: 10–500 m
Distribution
![V21-34-distribution-map.gif](/w/images/9/99/V21-34-distribution-map.gif)
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
As evidenced by the synonymy, Parthenium integrifolium 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 P. integrifolium.
Selected References
None.