View source for Heterotheca grandiflora

{{Treatment/ID
|accepted_name=Heterotheca grandiflora
|accepted_authority=Nuttall
|publications={{Treatment/Publication
|title=Trans. Amer. Philos. Soc., n. s.
|place=7: 315. 1840
|year=1840
}}
|common_names=Silk-grass goldenaster
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Heterotheca floribunda
|authority=Bentham
}}
|hierarchy=Asteraceae;Asteraceae tribe Astereae;Heterotheca;Heterotheca 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 Astereae]]</div><div class="higher-taxon"><small>genus</small>[[Heterotheca]]</div><div class="higher-taxon"><small>species</small>[[Heterotheca grandiflora]]</div></div>
|volume=Volume 20
|mention_page=page 231, 232, 236
|treatment_page=page 235
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Annuals,</b> biennials, or short-lived perennials, 10–250 cm (atypical, spring-blooming, dwarf dune plants have short stems; perennating from proximal stem nodes in south; aromatic); taprooted. <b>Stems</b> 1–5+, ascending to erect (strict, 0.9–1.7 cm diam., only distal lateral branches developing in larger plants), moderately to densely hispido-strigose, more so proximally, moderately to densely stipitate-glandular, more so distally. <b>Leaves</b>: basal and proximal cauline petiolate (petioles 3–7 cm, bases auriculate-clasping), blades ovate or elliptic to oblong, 50–80 × 20–30 mm, margins flat or somewhat undulate, coarsely serrate to serrulate or entire, proximally long-ciliate, apices acute, faces moderately to densely long-hispido-strigose; distal sessile, blades oblong-lanceolate to lanceolate, 20–40 × 20–30 mm, reduced distally, margins often undulate, coarsely serrate. <b>Heads</b> 10–110+, in corymbiform arrays, becoming paniculiform with age, branches ascending, usually relatively short compared to plant height. <b>Peduncles</b> 10–65 mm, sparsely to densely hispido-strigose, densely stipitate-glandular; bracts 0–3, linear-lanceolate to linear, reduced distally. <b>Involucres</b> campanulo-hemispheric, 6–9 mm. <b>Phyllaries</b> in 4–6 series, linear-lanceolate, unequal, margins scarious, faces strigose, densely stipitate-glandular. <b>Ray</b> florets 20–40; laminae 5–8 × 1–2 mm. <b>Disc</b> florets 30–75; corollas 4–6 mm, lobes 0.5–0.8 mm. <b>Cypselae</b> dimorphic, (ray) 2–5 mm, faces glabrous or slightly strigose on angles, (disc) 4–6 mm, faces moderately to densely strigose; pappi 0 (ray) or (disc) stramineous to rusty brown, outer bristles 0.4–0.7 mm, inner 6–9 mm, longest weakly clavate. <b>2n</b> = 18.</span><!--

-->{{Treatment/Body
|phenology=Flowering Apr–Dec(–Jan).
|habitat=Sandy and gravelly soils, dunes, disturbed ground, roadsides, vacant lots, fields
|elevation=0–100(–900) m
|distribution=Ariz.;Calif.;Nev.;Utah;introduced in Pacific Islands (Hawaii).
|discussion=<p><i>Heterotheca grandiflora</i> is common in California, rare and probably introduced in Arizona, <i>Nevada</i>, and Utah, and introduced in Hawaii. Rosette plants can bloom in the spring.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Heterotheca grandiflora
|author=
|authority=Nuttall
|rank=species
|parent rank=genus
|synonyms=Heterotheca floribunda
|basionyms=
|family=Asteraceae
|phenology=Flowering Apr–Dec(–Jan).
|habitat=Sandy and gravelly soils, dunes, disturbed ground, roadsides, vacant lots, fields
|elevation=0–100(–900) m
|distribution=Ariz.;Calif.;Nev.;Utah;introduced in Pacific Islands (Hawaii).
|reference=None
|publication title=Trans. Amer. Philos. Soc., n. s.
|publication year=1840
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V19-20-21/V20_517.xml
|tribe=Asteraceae tribe Astereae
|genus=Heterotheca
|species=Heterotheca grandiflora
}}<!--

-->[[Category:Treatment]][[Category:Heterotheca]]