View source for Silphium laciniatum

{{Treatment/ID
|accepted_name=Silphium laciniatum
|accepted_authority=Linnaeus
|publications={{Treatment/Publication
|title=Sp. Pl.
|place=2: 919. 1753
|year=1753
}}
|common_names=Compass plant
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Silphium laciniatum var. robinsonii
|authority=L. M. Perry
|rank=variety
}}
|hierarchy=Asteraceae;Asteraceae tribe Heliantheae;Asteraceae (tribe Heliantheae) subtribe Ecliptinae;Silphium;Silphium laciniatum
|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 Ecliptinae]]</div><div class="higher-taxon"><small>genus</small>[[Silphium]]</div><div class="higher-taxon"><small>species</small>[[Silphium laciniatum]]</div></div>
|volume=Volume 21
|mention_page=page 77
|treatment_page=page 78
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>scapiform, (40–)100–300 cm; taprooted. <b>Stems</b> terete, hirsute, hispid, or scabrous. <b>Leaves</b>: basal persistent, petiolate or sessile; cauline petiolate or sessile; blades lanceolate, linear, ovate, or rhombic, 4–60 × 1–30 cm, usually (proximal) 1–2-pinnately lobed, bases attenuate to truncate, ultimate margins unevenly toothed or entire, apices acute, faces hirsute, hispid, or scabrous. <b>Phyllaries</b> 25–45 in 2–3 series, outer reflexed or appressed, apices acuminate to caudate, abaxial faces hispid to scabrous, ± stipitate-glandular. <b>Ray</b> florets 27–38; corollas yellow. <b>Disc</b> florets 100–275; corollas yellow. <b>Cypselae</b> 10–18 × 6–12 mm; pappi 1–3 mm. <b>2n</b> = 14.</span><!--

-->{{Treatment/Body
|phenology=Flowering summer–early fall.
|habitat=Prairies, open, disturbed sites
|elevation=50–600 m
|distribution=Ont.;Ala.;Ark.;Ill.;Ind.;Iowa;Kans.;Ky.;La.;Mich.;Minn.;Miss.;Mo.;Nebr.;N.Mex.;N.Y.;Ohio;Okla.;Pa.;S.Dak.;Tenn.;Tex.;Wis.
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Silphium laciniatum
|authority=Linnaeus
|rank=species
|parent rank=genus
|synonyms=Silphium laciniatum var. robinsonii
|basionyms=
|family=Asteraceae
|phenology=Flowering summer–early fall.
|habitat=Prairies, open, disturbed sites
|elevation=50–600 m
|distribution=Ont.;Ala.;Ark.;Ill.;Ind.;Iowa;Kans.;Ky.;La.;Mich.;Minn.;Miss.;Mo.;Nebr.;N.Mex.;N.Y.;Ohio;Okla.;Pa.;S.Dak.;Tenn.;Tex.;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/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V19-20-21/V21_170.xml
|tribe=Asteraceae tribe Heliantheae
|subtribe=Asteraceae (tribe Heliantheae) subtribe Ecliptinae
|genus=Silphium
|species=Silphium laciniatum
}}<!--

-->[[Category:Treatment]][[Category:Silphium]]