Cirsium Species, Alameda County Thistle, Brownie Thistle
Cirsiumquercetorum

Family: Asteraceae (ass-ter-AY-see-ee)
Genus: Cirsium (SIR-see-um)
Species: quercetorum (kwer-SET-or-um)

Synonym:Carduus quercetorum

Synonym:Cirsium walkerianum

Category

Water Requirements

Sun Exposure

Foliage

Foliage Color

Height

Spacing

Hardiness

Where to Grow

Danger

Bloom Color

Bloom Characteristics

Bloom Size

Bloom Time

Other details

Soil pH requirements

Patent Information

Propagation Methods
By dividing rhizomes, tubers, corms or bulbs (including offsets)
From seed; direct sow outdoors in fall

Seed Collecting