Native Plants
Search for native plants by scientific name, common name or family. If you are not sure what you are looking for, try the Combination Search or our Recommended Species lists.
Cirsium quercetorum
Cirsium quercetorum (A. Gray) Jeps.
Alameda County Thistle, Brownie Thistle
Asteraceae (Aster Family)
Synonym(s): Cirsium quercetorum var. mendocinum, Cirsium quercetorum var. quercetorum, Cirsium quercetorum var. walkerianum, Cirsium quercetorum var. xerolepis, Cirsium walkerianum
USDA Symbol: CIQU2
USDA Native Status: L48 (N)
From the Image Gallery
No images of this plant
Plant Characteristics
Duration: Perennial , BiennialHabit: Herb
Size Notes: May form rounded mounds up to about 8 inches tall or erect plants up to about 3 feet tall.
Fruit: Fruit is a cypsela (pl. cypselae). Though technically incorrect, the fruit is often referred to as an achene.
Bloom Information
Bloom Color: White , PurpleBloom Time: Apr , May , Jun , Jul , Aug
Bloom Notes: No ray florets present, only disc florets.
Distribution
USA: CAWeb Reference
Webref 3 - Flora of North America (2014) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.Additional resources
USDA: Find Cirsium quercetorum in USDA PlantsFNA: Find Cirsium quercetorum in the Flora of North America (if available)
Google: Search Google for Cirsium quercetorum
Metadata
Record Modified: 2018-12-11Research By: CBR