View source for Rayjacksonia aurea

{{Treatment/ID
|accepted_name=Rayjacksonia aurea
|accepted_authority=(A. Gray) R. L. Hartman & M. A. Lane
|publications={{Treatment/Publication
|title=Amer. J. Bot.
|place=83: 369. 1996
|year=1996
}}
|common_names=Houston camphor-daisy
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}{{Treatment/ID/Special_status
|code=C
|label=Conservation concern
}}
|basionyms={{Treatment/ID/Basionym
|name=Haplopappus aureus
|authority=A. Gray
|rank=species
|publication_title=Mem. Amer. Acad. Arts, n. s.
|publication_place=4: 76. 1849 (as Aplopappus)
}}
|synonyms={{Treatment/ID/Synonym
|name=Machaeranthera aurea
|authority=(A. Gray) Shinners
|rank=species
}}
|hierarchy=Asteraceae;Asteraceae tribe Astereae;Rayjacksonia;Rayjacksonia aurea
|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>[[Rayjacksonia]]</div><div class="higher-taxon"><small>species</small>[[Rayjacksonia aurea]]</div></div>
|volume=Volume 20
|mention_page=
|treatment_page=page 438
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Annuals,</b> 20–100 cm, herbaceous. <b>Leaf</b> blades linear to linear-oblanceolate, mid-cauline 1–3(–4) mm wide. <b>Heads</b> on short, sometimes bracteate peduncles, not surpassed by distal leaves. <b>Involucres</b> 4–7 × 10–15 mm. <b>Phyllaries</b> in 4–5 series, tightly appressed, strongly unequal, apices erect to slightly spreading, ca. 1 mm wide, herbaceous. <b>Ray</b> florets 14–19; corollas 6.5–9.5 mm. <b>Disc</b> florets: corolla tubes ± equaling limbs. <b>2n</b> = 12.</span><!--

-->{{Treatment/Body
|phenology=Flowering Oct–Nov(–Dec).
|habitat=Sand or sandy loam, fields, pastures, usually relatively bare sites
|elevation=0–10 m
|distribution=Tex.
|discussion=<p>Of conservation concern.</p><!--
--><p><i>Rayjacksonia aurea</i> is now restricted to a few, small populations in the vicinity of Houston. It is in the Center for Plant Conservation’s National Collection of Endangered Plants.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Rayjacksonia aurea
|authority=(A. Gray) R. L. Hartman & M. A. Lane
|rank=species
|parent rank=genus
|synonyms=Machaeranthera aurea
|basionyms=Haplopappus aureus
|family=Asteraceae
|phenology=Flowering Oct–Nov(–Dec).
|habitat=Sand or sandy loam, fields, pastures, usually relatively bare sites
|elevation=0–10 m
|distribution=Tex.
|reference=None
|publication title=Amer. J. Bot.
|publication year=1996
|special status=Endemic;Conservation concern
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V19-20-21/V20_1002.xml
|tribe=Asteraceae tribe Astereae
|genus=Rayjacksonia
|species=Rayjacksonia aurea
}}<!--

-->[[Category:Treatment]][[Category:Rayjacksonia]]