View source for Rudbeckia laciniata

{{Treatment/ID
|accepted_name=Rudbeckia laciniata
|accepted_authority=Linnaeus
|publications={{Treatment/Publication
|title=Sp. Pl.
|place=2: 906. 1753
|year=1753
}}
|common_names=Cutleaf coneflower
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms=
|synonyms=
|hierarchy=Asteraceae;Asteraceae tribe Heliantheae;Asteraceae (tribe Heliantheae) subtribe Rudbeckiinae;Rudbeckia;Rudbeckia sect. Macrocline;Rudbeckia laciniata
|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 Rudbeckiinae]]</div><div class="higher-taxon"><small>genus</small>[[Rudbeckia]]</div><div class="higher-taxon"><small>section</small>[[Rudbeckia sect. Macrocline]]</div><div class="higher-taxon"><small>species</small>[[Rudbeckia laciniata]]</div></div>
|volume=Volume 21
|mention_page=page 45, 46
|treatment_page=page 49
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Perennials,</b> 50–300 cm (rhizomes often elongate, slender, plants colonial, roots fibrous). <b>Leaves</b> green, blades broadly ovate to lanceolate, all but distalmost 1–2-pinnatifid or pinnately compound, leaflets/lobes 3–11, bases cuneate to attenuate or cordate, margins entire or dentate, apices acute to acuminate, faces glabrous or hairy (sometimes with translucent patches); basal (often withering before flowering) petiolate, 15–50 × 10–25 cm; cauline petiolate or sessile, mostly lobed to pinnatifid, sometimes not lobed, 8–40 × 3–20 cm. <b>Heads</b> (2–25) in loose, corymbiform arrays. <b>Phyllaries</b> to 2 cm (8–15, ovate to lanceolate, margins mostly ciliate, glabrous or hairy). <b>Receptacles</b> hemispheric or ovoid to globose; paleae 3–7 mm, apices (at least of proximal) truncate or rounded, abaxial tips densely hairy. <b>Ray</b> florets 8–12; laminae elliptic to oblanceolate, 15–50 × 4–14 mm, abaxially hairy. <b>Discs</b> 9–30 × 10–23 mm. <b>Disc</b> florets 150–300+; corollas yellow to yellowish green (lobes yellow), 3.5–5 mm; style branches 1–1.5 mm, apices acute to rounded. <b>Cypselae</b> 3–4.5 mm; pappi coroniform or of 4 scales, to 1.5 mm.</span><!--

-->{{Treatment/Body
|distribution=B.C.;Man.;N.B.;N.S.;Ont.;P.E.I.;Que.;Ala.;Ariz.;Ark.;Colo.;Conn.;Del.;Fla.;Ga.;Ill.;Ind.;Iowa;Kans.;Ky.;La.;Maine;Mass.;Md.;Mich.;Minn.;Miss.;Mo.;Mont.;N.C.;N.Dak.;N.H.;N.Mex.;N.Y.;Nebr.;Ohio;Okla.;Pa.;S.C.;S.Dak.;Tenn.;Tex.;Va.;Vt.;W.Va.;Wis.;Wyo.
|discussion=<p>Varieties 5 (5 in the flora).</p><!--
--><p>Cultivars of <i>Rudbeckia laciniata</i> are grown as ornamentals. The cultivar ‘golden-glow’ is widely planted and occasionally escapes cultivation. Among the varieties traditionally recognized in floristic treatments, vars. ampla and heterophylla are the most distinctive. Detailed investigation may show that the other varieties, from eastern North America, represent broadly intergrading forms that should be subsumed under <i></i>var.<i> laciniata</i>.</p>
|tables=
|references=
}}<!--

--><div class="treatment-key">
==Key==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-1
|1
|Receptacles ovoid; discs (17–)20–30 mm; w of Great Plains
|[[Rudbeckia laciniata var. ampla|Rudbeckia laciniata var. ampla]]
|-id=key-0-1
|1
|Receptacles globose or hemispheric; discs 10–20 mm; Great Plains and e United States
|[[#key-0-2| > 2]]
|-id=key-0-2
|2
|Basal and proximal cauline leaves not lobed, adaxial faces moderately to densely hairy; Levy County, Florida
|[[Rudbeckia laciniata var. heterophylla|Rudbeckia laciniata var. heterophylla]]
|-id=key-0-2
|2
|Basal and proximal cauline leaves lobed, adaxial leaf faces sparsely hairy or glabrous; e North America (not Levy County, Florida)
|[[#key-0-3| > 3]]
|-id=key-0-3
|3
|Proximal leaves usually with 0, 3, or 5 lobes; se United States
|[[Rudbeckia laciniata var. digitata|Rudbeckia laciniata var. digitata]]
|-id=key-0-3
|3
|Proximal leaves usually 1–2-pinnatifid or with 5–11 lobes; e North America (not se United States).
|[[#key-0-4| > 4]]
|-id=key-0-4
|4
|Proximal cauline leaves 2-pinnatifid, mid cauline leaves 5–11-lobed; paleae 3.1–4.1 mm; cypselae 3.5–4 mm; pappi 0.7–1.5 mm
|[[Rudbeckia laciniata var. bipinnata|Rudbeckia laciniata var. bipinnata]]
|-id=key-0-4
|4
|Proximal cauline leaves pinnatifid, mid cauline leaves 5–9-lobed; paleae 4.4–6.1 mm; cypselae 4.2–6 mm; pappi 0.1–0.7 mm 7e. Rudbeckia laciniata var. laciniata
|undefined
|}
</div></div><!--

-->{{#Taxon:
name=Rudbeckia laciniata
|authority=Linnaeus
|rank=species
|parent rank=section
|synonyms=
|basionyms=
|family=Asteraceae
|distribution=B.C.;Man.;N.B.;N.S.;Ont.;P.E.I.;Que.;Ala.;Ariz.;Ark.;Colo.;Conn.;Del.;Fla.;Ga.;Ill.;Ind.;Iowa;Kans.;Ky.;La.;Maine;Mass.;Md.;Mich.;Minn.;Miss.;Mo.;Mont.;N.C.;N.Dak.;N.H.;N.Mex.;N.Y.;Nebr.;Ohio;Okla.;Pa.;S.C.;S.Dak.;Tenn.;Tex.;Va.;Vt.;W.Va.;Wis.;Wyo.
|reference=None
|publication title=Sp. Pl.
|publication year=1753
|special status=Endemic
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V19-20-21/V21_95.xml
|tribe=Asteraceae tribe Heliantheae
|subtribe=Asteraceae (tribe Heliantheae) subtribe Rudbeckiinae
|genus=Rudbeckia
|section=Rudbeckia sect. Macrocline
|species=Rudbeckia laciniata
}}<!--

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[[Category:Treatment]]
[[Category:Rudbeckia sect. Macrocline]]
[[Category:Revised Since Print]]