View source for Cirsium occidentale var. lucianum

{{Treatment/ID
|accepted_name=Cirsium occidentale var. lucianum
|accepted_authority=D. J. Keil
|publications={{Treatment/Publication
|title=Sida
|place=21: 214. 2004
|year=2004
}}
|common_names=Cuesta Ridge thistle
|basionyms=
|synonyms=
|hierarchy=Asteraceae;Asteraceae tribe Cardueae;Cirsium;Cirsium occidentale;Cirsium occidentale var. lucianum
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Asteraceae]]</div><div class="higher-taxon"><small>tribe</small>[[Asteraceae tribe Cardueae]]</div><div class="higher-taxon"><small>genus</small>[[Cirsium]]</div><div class="higher-taxon"><small>species</small>[[Cirsium occidentale]]</div><div class="higher-taxon"><small>variety</small>[[Cirsium occidentale var. lucianum]]</div></div>
|volume=Volume 19
|mention_page=page 137
|treatment_page=page 139
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>erect, 30–200 cm, densely gray-tomentose. <b>Heads</b> in openly branched arrays, long-pedunculate, elevated well above proximal leaves. <b>Involucres</b> about as wide as long, 2–4 cm, floccose-arachnoid, without fine trichomes connecting tips of adjacent phyllaries. <b>Phyllaries</b> imbricate, outer ascending to spreading or reflexed, mid apices ascending to spreading, straight or distally curved, usually 5–8 × 1–3 mm. <b>Corollas</b> dark reddish purple, 20–24 mm.</span><!--

-->{{Treatment/Body
|phenology=Flowering spring–summer (Apr–Jul).
|habitat=Chaparral, openings in closed cypress conifer forests, mixed evergreen forests, oak woodlands
|elevation=500–1500 m
|distribution=Calif.
|discussion=<p>Variety lucianum occupies a narrow corridor along and adjacent to the main ridge of the southern Santa Lucia Mountains of San Luis Obispo County. D. J. Keil and C. E. Turner (1993) treated these plants as an atypical race of <i></i></i>var.<i><i> californicum</i>. They resemble small-headed plants of the latter but differ in their dark, reddish purple corollas. They approach the ranges of <i></i></i>var.<i><i> californicum</i> and <i></i></i>var.<i><i> venustum</i> but are not known to grow with either. They may represent a stabilized emergent form derived by prehistoric hybridization between <i></i></i>var.<i><i> californicum</i> and <i></i></i>var.<i><i> venustum</i>.</p><!--
--><p>of conservation concern</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Cirsium occidentale var. lucianum
|author=
|authority=D. J. Keil
|rank=variety
|parent rank=species
|synonyms=
|basionyms=
|family=Asteraceae
|phenology=Flowering spring–summer (Apr–Jul).
|habitat=Chaparral, openings in closed cypress conifer forests, mixed evergreen forests, oak woodlands
|elevation=500–1500 m
|distribution=Calif.
|reference=None
|publication title=Sida
|publication year=2004
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V19-20-21/V19_119.xml
|tribe=Asteraceae tribe Cardueae
|genus=Cirsium
|species=Cirsium occidentale
|variety=Cirsium occidentale var. lucianum
}}<!--

-->[[Category:Treatment]][[Category:Cirsium occidentale]]