View source for Cirsium arizonicum var. rothrockii

{{Treatment/ID
|accepted_name=Cirsium arizonicum var. rothrockii
|accepted_authority=(A. Gray) D. J. Keil
|publications={{Treatment/Publication
|title=Sida
|place=21: 210. 2004
|year=2004
}}
|common_names=Rothrock’s thistle
|basionyms={{Treatment/ID/Basionym
|name=Cnicus rothrockii
|authority=A. Gray
|publication_title=Proc. Amer. Acad. Arts
|publication_place=17: 220. 1882
}}
|synonyms={{Treatment/ID/Synonym
|name=Cirsium rothrockii
|authority=(A. Gray) Petrak
}}
|hierarchy=Asteraceae;Asteraceae tribe Cardueae;Cirsium;Cirsium arizonicum;Cirsium arizonicum var. rothrockii
|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 arizonicum]]</div><div class="higher-taxon"><small>variety</small>[[Cirsium arizonicum var. rothrockii]]</div></div>
|volume=Volume 19
|mention_page=page 142
|treatment_page=page 143
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Stems </b>glabrous. <b>Leaf</b> blades ± deeply divided or the distal unlobed and merely spiny-dentate, faces glabrous or the basal abaxially sometimes thinly tomentose, rarely with septate trichomes abaxially along the midveins; main marginal spines often stout, 5–15 mm; cauline bases usually narrowed, not decurrent. <b>Involucres</b> cylindric to narrowly ovoid. <b>Phyllary</b> spines slender to very stout, 5–30 mm. <b>Corollas</b> bright red, 28–32 mm, tubes 10–12, throats 1.5–3 mm, lobes 15–17 mm; style tips 1–2.5 mm. <b>2n</b> = 30 (as C. rothrockii).</span><!--

-->{{Treatment/Body
|phenology=Flowering summer–fall (Jun–Oct).
|habitat=Rocky slopes, embankments, pine-oak-juniper-cypress woodlands, montane coniferous forests
|elevation=1500–2800 m
|distribution=Ariz.;N.Mex.
|discussion=<p>Variety rothrockii is endemic to Chiricahua, Dos Cabseos, Huachuca, Peloncillo, Pinal, Pinaleno, Sierra Ancha, and White mountains of southeastern Arizona and adjacent New Mexico, where it largely replaces <i></i></i>var.<i><i> arizonicum</i>. The name <i>Cirsium</i> rothrockii has been misapplied to similarly glabrous plants of the Four Corners region (e.g., S. L. Welsh 1983), but those plants are assigned here to other varieties.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Cirsium arizonicum var. rothrockii
|author=
|authority=(A. Gray) D. J. Keil
|rank=variety
|parent rank=species
|synonyms=Cirsium rothrockii
|basionyms=Cnicus rothrockii
|family=Asteraceae
|phenology=Flowering summer–fall (Jun–Oct).
|habitat=Rocky slopes, embankments, pine-oak-juniper-cypress woodlands, montane coniferous forests
|elevation=1500–2800 m
|distribution=Ariz.;N.Mex.
|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_126.xml
|tribe=Asteraceae tribe Cardueae
|genus=Cirsium
|species=Cirsium arizonicum
|variety=Cirsium arizonicum var. rothrockii
}}<!--

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