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{{Short description|Species of thistle}}
{{italic title}}
{{speciesbox
{{taxobox
|image = Cirsium quercetorum.jpg
|image = Cirsium quercetorum.jpg
⚫
|genus = Cirsium
|name =
⚫
|species = quercetorum
|regnum = [[Plantae]]
⚫
|authority = ([[Asa Gray|Gray]]) [[Willis Linn Jepson|Jeps.]]
|unranked_divisio = [[Angiosperms]]
⚫
|synonyms_ref = <ref>[http://www.theplantlist.org/tpl1.1/record/gcc-124406 The Plant List, ''Cirsium quercetorum'' (A.Gray) Jeps. ]</ref>
|unranked_classis = [[Eudicots]]
⚫
|synonyms =
|unranked_ordo = [[Asterids]]
|ordo = [[Asterales]]
|familia = [[Asteraceae]]
|tribus = [[Cynareae]]
⚫
|genus = ''[[Cirsium]]''
⚫
|species = '''''C. quercetorum'''''
|binomial = ''Cirsium quercetorum''
⚫
|binomial_authority = ([[Asa Gray|Gray]]) [[Willis Linn Jepson|Jeps.]]
⚫
|synonyms_ref=<ref>[http://www.theplantlist.org/tpl1.1/record/gcc-124406 The Plant List, ''Cirsium quercetorum'' (A.Gray) Jeps. ]</ref>
⚫
|synonyms=
*''Carduus quercetorum'' <small>(A.Gray) Greene</small>
*''Carduus quercetorum'' <small>(A.Gray) Greene</small>
*''Cirsium walkerianum'' <small>Petr.</small>
*''Cirsium walkerianum'' <small>Petr.</small>
*''Cnicus quercetorum'' <small>A.Gray</small>
*''Cnicus quercetorum'' <small>A.Gray</small>
| status = G3
⚫
|}}
| status_system = TNC
| status_ref = <ref name="TNC status 19 may 2022">{{Cite web|date=2022 |url= https://explorer.natureserve.org/Taxon/ELEMENT_GLOBAL.2.132013 |access-date=19 May 2022 |website=NatureServe Explorer |publisher=NatureServe|title= NatureServe Explorer }}</ref>
⚫
}}


'''''Cirsium quercetorum''''' is a species of [[thistle]] endemic to coastal [[California]], its common names include '''brownie thistle''' and '''Alameda thistle'''.<ref name=naomi>[http://www.calflora.org/cgi-bin/species_query.cgi?where-taxon=Cirsium+quercetorum Calflora taxon report, University of California, Cirsium quercetorum (A. Gray) Jepson Alameda County thistle, brownie thistle ]</ref>
'''''Cirsium quercetorum''''' is a species of [[thistle]] endemic to coastal [[California]], its common names include '''brownie thistle''' and '''Alameda thistle'''.<ref name=naomi>[http://www.calflora.org/cgi-bin/species_query.cgi?where-taxon=Cirsium+quercetorum Calflora taxon report, University of California, Cirsium quercetorum (A. Gray) Jepson Alameda County thistle, brownie thistle ]</ref>
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==Description==
==Description==
The perennial ''Cirsium quercetorum'' plant usually grows clumped low to the ground, less than 20 cm (8 inches) tall, but occasionally the plant grows erect and can reach 90 cm (36 inches) in height. It has spiny lobed toothy leaves and spiny flower heads with brownish ivory-tan white to purple [[disc floret]]s but no [[ray florets]].<ref>[http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=250066396 Flora of North America, Brownie or Alameda County thistle , ''Cirsium quercetorum'' (A. Gray) Jepson]</ref>
The perennial ''Cirsium quercetorum'' plant usually grows clumped low to the ground, less than 20&nbsp;cm (8 inches) tall, but occasionally the plant grows erect and can reach 90&nbsp;cm (36 inches) in height. It has spiny lobed toothy leaves and spiny flower heads with brownish ivory-tan white to purple [[disc floret]]s but no [[ray florets]].<ref>[http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=250066396 Flora of North America, Brownie or Alameda County thistle , ''Cirsium quercetorum'' (A. Gray) Jepson]</ref>

==See also==
*[[California coastal prairie]]


==References==
==References==
{{reflist}}
{{Reflist}}


==External links==
==External links==
* C. Michael Hogan ed. 2010. [http://www.eol.org/pages/468323 ''Cirsium quercetorum''. Encyclopedia of Life]
*{{Commons category-inline|Cirsium quercetorum}}
*C. Michael Hogan ed. 2010. [http://www.eol.org/pages/468323 ''Cirsium quercetorum''. Encyclopedia of Life]
*[http://ucjeps.berkeley.edu/cgi-bin/get_JM_treatment.pl?609,963,994 Jepson Manual Treatment — ''Cirsium quercetorum'']
*[http://ucjeps.berkeley.edu/cgi-bin/get_JM_treatment.pl?609,963,994 Jepson Manual Treatment — ''Cirsium quercetorum'']
* [http://plants.usda.gov/java/profile?symbol=CIQU2 United States Department of Agriculture Plants Profile: ''Cirsium quercetorum'']
*[http://calphotos.berkeley.edu/cgi/img_query?where-genre=Plant&where-taxon=Cirsium+quercetorum ''Cirsium quercetorum''— Calphotos Photo gallery, University of California]
*[http://calphotos.berkeley.edu/cgi/img_query?where-genre=Plant&where-taxon=Cirsium+quercetorum ''Cirsium quercetorum''— Calphotos Photo gallery, University of California]

{{commonscat|position=left}}
{{Taxonbar|from=Q5122074}}


[[Category:Cirsium|quercetorum]]
[[Category:Cirsium|quercetorum]]
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[[Category:Natural history of the California Coast Ranges]]
[[Category:Natural history of the California Coast Ranges]]
[[Category:Natural history of the San Francisco Bay Area]]
[[Category:Natural history of the San Francisco Bay Area]]


{{Cynareae-stub}}

Latest revision as of 01:20, 28 May 2022

Cirsium quercetorum

Vulnerable  (NatureServe)[1]
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Cirsium
Species:
C. quercetorum
Binomial name
Cirsium quercetorum
Synonyms[2]
  • Carduus quercetorum (A.Gray) Greene
  • Cirsium walkerianum Petr.
  • Cnicus quercetorum A.Gray

Cirsium quercetorum is a species of thistle endemic to coastal California, its common names include brownie thistle and Alameda thistle.[3]

Distribution

[edit]

Cirsium quercetorum is endemic to the Outer California Coast Ranges from Santa Barbara's Point Conception north into the San Francisco Bay Area and up the North Coast as far as Humboldt County.[3] This is a common plant found in coastal grasslands and open woodlands.

Description

[edit]

The perennial Cirsium quercetorum plant usually grows clumped low to the ground, less than 20 cm (8 inches) tall, but occasionally the plant grows erect and can reach 90 cm (36 inches) in height. It has spiny lobed toothy leaves and spiny flower heads with brownish ivory-tan white to purple disc florets but no ray florets.[4]

References

[edit]
  1. ^ "NatureServe Explorer". NatureServe Explorer. NatureServe. 2022. Retrieved 19 May 2022.
  2. ^ The Plant List, Cirsium quercetorum (A.Gray) Jeps.
  3. ^ a b Calflora taxon report, University of California, Cirsium quercetorum (A. Gray) Jepson Alameda County thistle, brownie thistle
  4. ^ Flora of North America, Brownie or Alameda County thistle , Cirsium quercetorum (A. Gray) Jepson
[edit]


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