View source for Bradburia

{{Treatment/ID
|accepted_name=Bradburia
|accepted_authority=Torrey & A. Gray
|publications={{Treatment/Publication
|title=Fl. N. Amer.
|place=2: 250. 1842
|year=1842
}}
|common_names=Goldenaster
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Chrysopsis sect. Bradburia
|authority=(Torrey & A. Gray) G. L. Nesom
|rank=section
}}
|hierarchy=Asteraceae;Asteraceae tribe Astereae;Bradburia
|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>[[Bradburia]]</div></div>
|etymology=For John Bradbury, 1768–1823, English naturalist, collector for the Liverpool Botanic Garden in the Missouri Territory, 1810–1811
|volume=Volume 20
|mention_page=page 10, 14, 214
|treatment_page=page 211
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Annuals,</b> rarely perennials, 15–80 cm; caudices taprooted, woody. <b>Stems</b> erect, usually simple (annuals), sometimes proximally branched (perennials), sparsely pilose. <b>Leaves</b> basal and cauline; alternate; basal petiolate, cauline sesssile; blades 1-nerved, oblanceolate (bases attenuate), margins entire or apically dentate, sometimes coarsely hispido-pilose (apices acute), faces hispido-pilose, sometimes coarsely so; cauline blades linear-lanceolate to elliptic-oblong, reduced distally, obscurely apically dentate or entire, faces pilose. <b>Heads</b> radiate, borne singly or in lax paniculiform arrays (on long branches from distal nodes, much exceeding primary and higher level branches from which they arise). <b>Peduncles</b> 1.5–10 cm, short hispido-pilose, stipitate-glandular distally. <b>Involucres</b> campanulate, (6–9 ×) 6–17 mm. <b>Phyllaries</b> 25–60 in 3–5 series, 1-nerved (midnerves yellow-brown to brown, somewhat translucent, faint to obvious, raised; outer somewhat keeled proximally), linear to linear-lanceolate, strongly unequal, scarious to herbaceous distally, margins broadly scarious, faces sparsely to densely short- to long-pilose, sparsely glandular. <b>Receptacles</b> flat to slightly convex, pitted, epaleate. <b>Ray</b> florets 7–25, pistillate, fertile; corollas yellow. <b>Disc</b> florets 11–60, bisexual and fertile, or functionally staminate and sterile; corollas yellow, tubes shorter than cylindric, distally narrowly expanded throats, lobes 5, erect, triangular; style-branch appendages linear-triangular. <b>Cypselae</b> (straw to brown) obconic-obovoid, compressed or triangular, smooth or slightly ribbed, faces short-strigose; pappi persistent, of 20–35 stramineous to rusty brown, apically attenuate bristles in 2–3 series, outer either bristles grading into inner series or scales. <b>x</b> = 4, 3.</span><!--

-->{{Treatment/Body
|distribution=se United States.
|discussion=<p>Species 2 (2 in the flora).</p><!--
--><p><i>Bradburia</i> was considered monotypic until recently. J. C. Semple and C. C. Chinnappa (1984) thought that one species, <i>B. hirtella</i>, was closely related to <i>Chrysopsis</i> pilosa but not to species of <i>Heterotheca</i>. G. L. Nesom (1991) included <i>B. hirtella</i> within <i>Chrysopsis</i> sect. <i>Bradburia</i> with <i>C. pilosa</i>. Semple (1996) maintained the genus as separate and transferred <i>C. pilosa</i> to <i>Bradburia</i>. In a cladistic study of subtribe Chrysopsidinae, Semple and L. Tebby (1999) found that the two species of <i>Bradburia</i> form a strongly supported group in a clade with <i>Heterotheca</i> and <i>Croptilon</i>, while <i>Chrysopsis</i> is in a clade with <i>Pityopsis</i>, the Mexican monotypic genus Tomentaurum G. L. Nesom, and the South American genus Noticastrum de Candolle.</p>
|tables=
|references=
}}<!--

--><div class="treatment-key">
==Key==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-1
|1
|Disc florets staminate; ray pappi of narrow, broad-based bristles 1–3 mm, outer series shorter than and grading into inner bristles
|[[Bradburia hirtella|Bradburia hirtella]]
|-id=key-0-1
|1
|Disc florets bisexual; ray and disc pappi in 2 distinct series, outer of flat scales 0.5–1.1 mm, inner of barbellate bristles 5–6 mm
|[[Bradburia pilosa|Bradburia pilosa]]
|}
</div></div><!--

-->{{#Taxon:
name=Bradburia
|author=John C. Semple
|authority=Torrey & A. Gray
|rank=genus
|parent rank=tribe
|synonyms=Chrysopsis sect. Bradburia
|basionyms=
|family=Asteraceae
|illustrator=Marjorie C. Leggitt
|illustration copyright=Flora of North America Association
|distribution=se United States.
|reference=None
|publication title=Fl. N. Amer.
|publication year=1842
|special status=
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V19-20-21/V20_471.xml
|tribe=Asteraceae tribe Astereae
|genus=Bradburia
}}<!--

-->[[Category:Treatment]][[Category:Asteraceae tribe Astereae]]