| Family | ASTERACEAE |
| Genus species | Cirsium quercetorum (A.Gray) Jeps. trib. Cardueae |
| Bibliography | Fl. W. Calif.: 507 (1901) |
| Native Range | California |
| Primary Biome | Temperate |
| Habitat | stony grassland |
| Altitude | 0-500m |
| Description | leaves loosely tomentose, glabrescent, petiolate, lobate, spinose, spines 2-7mm, capitula 1-few, involucre subspherical, bracts lanceolate, spinose, corolla 2-3cm |
| Size | 5-20cm |
| Color | white, purple |
| Bloom | late spring, summer |
| Ca | |
| Type | perennial |
| Cultivation | sunny site with a deep, drained soil alpine house, rich, drained soil, sun |
| Propagation | seed in spring, germ. 1 month, 13-18°C root cuttings in late winter |
| Synonyms | Carduus quercetorum (A.Gray) Greene Cirsium quercetorum var. campylolepis Petr. Cirsium quercetorum var. mendocinum Petr. Cirsium quercetorum var. walkerianum (Petr.) Jeps. Cirsium quercetorum var. xerolepis Petr. Cirsium walkerianum Petr. Cnicus quercetorum A.Gray |
| Territory | 7 Northern America 76 Southwestern U.S.A. (CAL California) |