View source for Cirsium occidentale var. californicum

{{Treatment/ID
|accepted_name=Cirsium occidentale var. californicum
|accepted_authority=(A. Gray) D. J. Keil & C. E. Turner
|publications={{Treatment/Publication
|title=Phytologia
|place=73: 315. 1992
|year=1992
}}
|common_names=California thistle
|basionyms={{Treatment/ID/Basionym
|name=Cirsium californicum
|authority=A. Gray
|publication_title=in War Department [U.S.], Pacif. Railr. Rep.
|publication_place=4(5): 112. 1857
}}
|synonyms={{Treatment/ID/Synonym
|name=Cirsium bernardinum
|authority=(Greene) Petrak
}} {{Treatment/ID/Synonym
|name=Cirsium californicum var. bernardinum
|authority=(Greene) Petrak
}} {{Treatment/ID/Synonym
|name=Cirsium californicum subsp. pseudoreglense
|authority=Petrak
}}
|hierarchy=Asteraceae;Asteraceae tribe Cardueae;Cirsium;Cirsium occidentale;Cirsium occidentale var. californicum
|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. californicum]]</div></div>
|volume=Volume 19
|mention_page=page 137, 140
|treatment_page=page 139
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>erect, usually 50–200 cm, thinly to densely gray-tomentose, sometimes glabrate. <b>Leaf</b> faces abaxially green to gray, adaxially gray. <b>Heads</b> in ± open clusters, short- to long-pedunculate, elevated well above proximal leaves. <b>Involucres</b> usually about as wide as long, 1.5–5 cm, subglabrous to densely arachnoid. <b>Phyllaries</b> usually imbricate, mid apices appressed to loosely spreading or ascending, sometimes twisted, usually less than 1 cm (but sometimes much longer), 1–3 mm. <b>Corollas</b> white to light purple or rose, 18–35 mm. <b>2n</b> = 28, 29, 30 (as <i>C. californicum</i>).</span><!--

-->{{Treatment/Body
|phenology=Flowering spring–summer (Apr–Aug).
|habitat=Pine-oak woodlands, riparian woodlands, chaparral, openings in mixed evergreen forests, roadsides
|elevation=100–2200 m
|distribution=Calif.
|discussion=<p>Variety californicum occurs in both coastal and interior mountains of California from the northern South Coast Range and the northern Sierra <i>Nevada</i> to the mountains of southwestern California. Considerable variation exists in head size, corolla color, and in length and display of phyllary appendages. In several areas of its range, the predominantly white- to light purple-flowered <i></i></i>var.<i><i> californicum</i> occurs with red-flowered <i></i></i>var.<i><i> venustum</i>. These plants are highly interfertile (H. Wells 1983; D. J. Keil and C. E. Turner 1992). Introgressive hybridization among them has resulted in a variety of emergent phenotypes and may have contributed to the variation within <i></i></i>var.<i><i> californicum</i>.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Cirsium occidentale var. californicum
|author=
|authority=(A. Gray) D. J. Keil & C. E. Turner
|rank=variety
|parent rank=species
|synonyms=Cirsium bernardinum;Cirsium californicum var. bernardinum;Cirsium californicum subsp. pseudoreglense
|basionyms=Cirsium californicum
|family=Asteraceae
|phenology=Flowering spring–summer (Apr–Aug).
|habitat=Pine-oak woodlands, riparian woodlands, chaparral, openings in mixed evergreen forests, roadsides
|elevation=100–2200 m
|distribution=Calif.
|reference=None
|publication title=Phytologia
|publication year=1992
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V19-20-21/V19_118.xml
|tribe=Asteraceae tribe Cardueae
|genus=Cirsium
|species=Cirsium occidentale
|variety=Cirsium occidentale var. californicum
}}<!--

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