View source for Thelesperma filifolium

{{Treatment/ID
|accepted_name=Thelesperma filifolium
|accepted_authority=(Hooker) A. Gray
|publications={{Treatment/Publication
|title=Hooker’s J. Bot. Kew Gard. Misc.
|place=1: 252. 1849
|year=1849
}}
|special_status={{Treatment/ID/Special_status
|code=F
|label=Illustrated
}}
|basionyms={{Treatment/ID/Basionym
|name=Coreopsis filifolia
|authority=Hooker
|rank=species
|publication_title=Bot. Mag.
|publication_place=63: plate 3505. 1836
}}
|synonyms={{Treatment/ID/Synonym
|name=Thelesperma filifolium var. intermedium
|authority=(Rydberg) Shinners
|rank=variety
}} {{Treatment/ID/Synonym
|name=Thelesperma intermedium
|authority=
|rank=species
}}
|hierarchy=Asteraceae;Asteraceae tribe Heliantheae;Asteraceae (tribe Heliantheae) subtribe Coreopsidinae;Thelesperma;Thelesperma filifolium
|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 Coreopsidinae]]</div><div class="higher-taxon"><small>genus</small>[[Thelesperma]]</div><div class="higher-taxon"><small>species</small>[[Thelesperma filifolium]]</div></div>
|volume=Volume 21
|mention_page=page 200, 203
|treatment_page=page 202
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Annuals </b>(sometimes persisting), 10–40(–70+) cm. <b>Cauline</b> leaves crowded to ± scattered over proximal 1/2–3/4 of plant heights, internodes mostly 10–35(–50+) mm; lobes mostly linear to filiform, sometimes oblanceolate, 5–30(–55+) × 0.5–1(–3+) mm. <b>Calyculi</b> of 7–8+ linear to narrowly triangular bractlets (2–)4–8+ mm. <b>Ray</b> florets 8; laminae yellow to golden yellow (sometimes proximally suffused with red-brown), 12–20+ mm. <b>Disc</b> corollas red-brown or yellow with red-brown nerves, throats shorter than lobes. <b>Cypselae</b> 3.5–4+ mm; pappi 0.5–1(–2+) mm. <b>2n</b> = 16, 18.</span><!--

-->{{Treatment/Body
|phenology=Flowering Mar–Aug(–Oct).
|habitat=Disturbed sites on clays or sandy soils, rocky slopes, often on limestone
|elevation=10–2200 m
|distribution=Ark.;Colo.;Kans.;La.;Miss.;Mo.;Nebr.;N.Mex.;Okla.;S.Dak.;Tex.;Wyo.;Mexico (Nuevo León).
|discussion=<p>As here circumscribed, <i>Thelesperma filifolium</i> includes plants that others have treated as a distinct species or variety: <i>T. intermedium</i> or <i>T. filifolium</i> <i></i>var.<i> intermedium</i>, characterized as plants mostly 10–40 cm (versus taller); internodes “relatively short” (versus longer); calyculus bractlets mostly 1/4–1/2 lengths of phyllaries (versus more than 1/2 as long); ray corollas yellow (versus “golden yellow”); disc corollas yellow (versus sometimes red-brown); distribution mostly north and west of the typical form (Colorado, Kansas, Nebraska, New Mexico, w Oklahoma, South Dakota, c and w Texas, Wyoming).</p><!--
--><p>According to A. Cronquist (1980), <i>Thelesperma</i> trifidum (Poiret) Britton has been misapplied (e.g., M. L. Fernald 1950) to <i>T. filifolium</i>.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Thelesperma filifolium
|authority=(Hooker) A. Gray
|rank=species
|parent rank=genus
|synonyms=Thelesperma filifolium var. intermedium;Thelesperma intermedium
|basionyms=Coreopsis filifolia
|family=Asteraceae
|phenology=Flowering Mar–Aug(–Oct).
|habitat=Disturbed sites on clays or sandy soils, rocky slopes, often on limestone
|elevation=10–2200 m
|distribution=Ark.;Colo.;Kans.;La.;Miss.;Mo.;Nebr.;N.Mex.;Okla.;S.Dak.;Tex.;Wyo.;Mexico (Nuevo León).
|reference=None
|publication title=Hooker’s J. Bot. Kew Gard. Misc.
|publication year=1849
|special status=Illustrated
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V19-20-21/V21_499.xml
|tribe=Asteraceae tribe Heliantheae
|subtribe=Asteraceae (tribe Heliantheae) subtribe Coreopsidinae
|genus=Thelesperma
|species=Thelesperma filifolium
}}<!--

-->[[Category:Treatment]][[Category:Thelesperma]]