Cirsium_quercetorum

<i>Cirsium quercetorum</i>

Cirsium quercetorum

Species of thistle

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

Quick Facts Cirsium quercetorum, Conservation status ...

Distribution

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

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

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


Stub icon

This Cardueae article is a stub. You can help Wikipedia by expanding it.
Share this article:

This article uses material from the Wikipedia article Cirsium_quercetorum, and is written by contributors. Text is available under a CC BY-SA 4.0 International License; additional terms may apply. Images, videos and audio are available under their respective licenses.