View source for Rudbeckia maxima

{{Treatment/ID
|accepted_name=Rudbeckia maxima
|accepted_authority=Nuttall
|publications={{Treatment/Publication
|title=Trans. Amer. Philos. Soc., n. s.
|place=7: 354. 1840
|year=1840
}}
|common_names=Great or cabbage coneflower
|special_status={{Treatment/ID/Special_status
|code=F
|label=Illustrated
}}{{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 maxima
|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 maxima]]</div></div>
|volume=Volume 21
|mention_page=page 47
|treatment_page=page 50
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Perennials,</b> to 250 cm (rhizomatous, roots fibrous). <b>Leaves</b> bluish green (heavily glaucous, dried blades white under UV light, at least abaxially), blades elliptic, ovate to obovate or pandurate (not lobed), leathery, margins crenate, dentate, or entire, apices acute to rounded, faces glabrous; basal petiolate, elliptic to ovate, 15–65 × 4–15 cm, bases attenuate to cuneate; cauline petiolate or sessile, 7–50 × 4–14 cm, blades ovate to pandurate, bases cuneate to auriculate (and clasping). <b>Heads</b> borne singly or (3–15) in ± corymbiform arrays. <b>Phyllaries</b> to 1.5 cm (ovate to lanceolate, margins ciliate). <b>Receptacles</b> ovoid to conic; paleae 6–8 mm, apices mostly rounded, abaxial tips glabrous (hairy subapically). <b>Ray</b> florets 10–20; laminae elliptic to oblanceolate, 30–80 × 8–15 mm, abaxially sparsely hairy. <b>Discs</b> 40–80 × 15–35 mm. <b>Disc</b> florets 300–600+; corollas maroon (at least distally), 4–6 mm; style branches ca. 2.2 mm, apices acute. <b>Cypselae</b> 6.5–7 mm; pappi of 4–6 scales to 1.5 mm. <b>2n</b> = 36.</span><!--

-->{{Treatment/Body
|phenology=Flowering spring–summer.
|habitat=Mesic pastures, roadsides
|elevation=10–70 m
|distribution=Ark.;La.;Okla.;S.C.;Tex.
|discussion=<p><i>Rudbeckia maxima</i> was introduced in South Carolina and possibly elsewhere through horticultural and agricultural activities. It is a cultivated ornamental and is sometimes a problematic pasture weed.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Rudbeckia maxima
|authority=Nuttall
|rank=species
|parent rank=section
|synonyms=
|basionyms=
|family=Asteraceae
|phenology=Flowering spring–summer.
|habitat=Mesic pastures, roadsides
|elevation=10–70 m
|distribution=Ark.;La.;Okla.;S.C.;Tex.
|reference=None
|publication title=Trans. Amer. Philos. Soc., n. s.
|publication year=1840
|special status=Illustrated;Endemic
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V19-20-21/V21_101.xml
|tribe=Asteraceae tribe Heliantheae
|subtribe=Asteraceae (tribe Heliantheae) subtribe Rudbeckiinae
|genus=Rudbeckia
|section=Rudbeckia sect. Macrocline
|species=Rudbeckia maxima
}}<!--

-->[[Category:Treatment]][[Category:Rudbeckia sect. Macrocline]]