View source for Rudbeckia grandiflora

{{Treatment/ID
|accepted_name=Rudbeckia grandiflora
|accepted_authority=(Sweet) C. C. Gmelin ex de Candolle in A. P. de Candolle and A. L. P. P. de Candolle
|publications={{Treatment/Publication
|title=in A. P. de Candolle and A. L. P. P. de Candolle, Prodr.
|place=5: 556. 1836
|year=1836
}}
|common_names=Largeflower or rough coneflower
|basionyms={{Treatment/ID/Synonym
|name=Centrocarpha grandiflora
|authority=Sweet
}}
|synonyms=
|hierarchy=Asteraceae;Asteraceae tribe Heliantheae;Asteraceae (tribe Heliantheae) subtribe Rudbeckiinae;Rudbeckia;Rudbeckia sect. Rudbeckia;Rudbeckia grandiflora
|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. Rudbeckia]]</div><div class="higher-taxon"><small>species</small>[[Rudbeckia grandiflora]]</div></div>
|volume=Volume 21
|mention_page=page 53
|treatment_page=page 56
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Perennials,</b> to 120 cm (roots fibrous, caudices often woody). <b>Stems</b> proximally glabrous or sparsely hairy (hairs spreading), distally strigose (hairs ascending). <b>Leaves</b>: blades elliptic, lanceolate, or ovate (± conduplicate, not lobed), bases cuneate to rounded, margins entire or remotely serrate, apices acute, faces strigose, abaxially gland-dotted; basal petiolate, 10–35 × 2–11 cm; cauline petiolate (proximal) to nearly sessile (distal), 4–30 × 1.5–9 cm. <b>Heads</b> mostly borne singly. <b>Phyllaries</b> to 15 mm (strigose and gland-dotted). <b>Receptacles</b> hemispheric to ovoid; paleae 5–6.5 mm, (apical margins glabrous) acuminate-cuspidate, awn-tipped, abaxial tips sparsely strigose. <b>Ray</b> florets 12–25; laminae elliptic to obovate (reflexed), 20–50 × 5–10 mm, abaxially hairy and gland-dotted. <b>Discs</b> 10–30 × 15–25 mm. <b>Disc</b> florets 200–800+; corollas greenish yellow basally and in lobes, otherwise maroon, 3.5–5 mm; style branches ca. 1.8 mm, apices obtuse. <b>Cypselae</b> 2–3 mm; pappi coroniform, to 0.5 mm.</span><!--

-->{{Treatment/Body
|distribution=Mostly c;e;and s United States.
|discussion=<p>Varieties 2 (2 in the flora).</p>
|tables=
|references=
}}<!--

--><div class="treatment-key">
==Key==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-1
|1
|Stems glabrous or sparsely hairy proximally and hairy distally (hairs ascending, mostly shorter than 0.5 mm)
|[[Rudbeckia grandiflora var. alismifolia|Rudbeckia grandiflora var. alismifolia]]
|-id=key-0-1
|1
|Stems hairy (hairs spreading proximally, ascending distally, ca. 1 mm)
|[[Rudbeckia grandiflora var. grandiflora|Rudbeckia grandiflora var. grandiflora]]
|}
</div></div><!--

-->{{#Taxon:
name=Rudbeckia grandiflora
|author=
|authority=(Sweet) C. C. Gmelin ex de Candolle in A. P. de Candolle and A. L. P. P. de Candolle
|rank=species
|parent rank=section
|synonyms=
|basionyms=Centrocarpha grandiflora
|family=Asteraceae
|distribution=Mostly c;e;and s United States.
|reference=None
|publication title=in A. P. de Candolle and A. L. P. P. de Candolle, Prodr.
|publication year=1836
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V19-20-21/V21_118.xml
|tribe=Asteraceae tribe Heliantheae
|subtribe=Asteraceae (tribe Heliantheae) subtribe Rudbeckiinae
|genus=Rudbeckia
|section=Rudbeckia sect. Rudbeckia
|species=Rudbeckia grandiflora
}}<!--

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