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{{Short description|Species of thistle}}
{{Taxobox
{{speciesbox
| color = lightgreen
| name = ''Cirsium quercetorum''
|image = Cirsium quercetorum.jpg
| image =
|genus = Cirsium
⚫
|species = quercetorum
| image_width = 240px
⚫
|authority = ([[Asa Gray|Gray]]) [[Willis Linn Jepson|Jeps.]]
| regnum = [[Plant]]ae
|synonyms_ref = <ref>[http://www.theplantlist.org/tpl1.1/record/gcc-124406 The Plant List, ''Cirsium quercetorum'' (A.Gray) Jeps. ]</ref>
| divisio = [[Magnoliophyta]]
|synonyms =
| classis = [[Magnoliopsida]]
*''Carduus quercetorum'' <small>(A.Gray) Greene</small>
| ordo = [[Asterales]]
*''Cirsium walkerianum'' <small>Petr.</small>
| familia = [[Asteraceae]]
*''Cnicus quercetorum'' <small>A.Gray</small>
| genus = ''[[Cirsium]]''
| status = G3
⚫
| species = '''''C. quercetorum'''''
| status_system = TNC
| binomial = ''Cirsium quercetorum''
| 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>
⚫
| binomial_authority = ([[Asa Gray|Gray]]) [[Willis Linn Jepson|Jeps.]]
}}
}}


'''''Cirsium quercetorum''''' is a species of [[thistle]] which is [[Endemism|endemic]] to the coast of California. Its common names include '''brownie thistle''' and '''Alameda thistle'''. This perennial plant grows clumped low to the ground, has spiny lobed toothy leaves and spiny thistle flowers which may be brownish dirty white to purple. This is a common plant found in grassy areas in coastal California north of approximately Santa Barbara.
'''''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>

==Distribution==
''Cirsium quercetorum'' is [[Endemism|endemic]] to the Outer [[California Coast Ranges]] from [[Santa Barbara, California|Santa Barbara]]'s [[Point Conception]] north into the [[San Francisco Bay Area]] and up the [[North Coast (California)|North Coast]] as far as [[Humboldt County, California|Humboldt County]].<ref name=naomi/> This is a common plant found in coastal grasslands and open woodlands.

==Description==
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>

==References==
{{Reflist}}


==External links==
==External links==
*{{Commons category-inline|Cirsium quercetorum}}
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*[http://ucjeps.berkeley.edu/cgi-bin/get_JM_treatment.pl?609,963,994 Jepson Manual Treatment]
*[http://calphotos.berkeley.edu/cgi/img_query?where-genre=Plant&where-taxon=Cirsium+quercetorum Photo gallery]
*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://plants.usda.gov/java/profile?symbol=CIQU2 USDA Plants Profile]
*[http://calphotos.berkeley.edu/cgi/img_query?where-genre=Plant&where-taxon=Cirsium+quercetorum ''Cirsium quercetorum''— Calphotos Photo gallery, University of California]
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[[Category:Asteraceae]]

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[[Category:Flora of California]]
{{Taxonbar|from=Q5122074}}

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[[Category:Cirsium|quercetorum]]
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[[Category:Endemic flora of California]]
[[Category:Plants described in 1874]]
[[Category:Natural history of the California chaparral and woodlands]]
[[Category:Natural history of the California Coast Ranges]]
[[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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