| Family | RHAMNACEAE |
| Genus species | Ceanothus hearstiorum Hoover & Roof |
| Bibliography | Four Seasons 2(1): 4 (1966) |
| Native Range | California (n. San Luis Obispo Co.) |
| Primary Biome | Subtropical |
| Habitat | thickets and steppes |
| Altitude | 20-200m |
| Description | espinose, leaves shortly petiolate, linear to oblong-obovate, 1-2cm, cuneate, entire, truncate, adaxially dark green, inflorescence terminal or axillary, racemose |
| Size | 10-30cm |
| Color | deep blue |
| Bloom | early spring |
| Ca | |
| Type | subshrub |
| Cultivation | sunny site with a deep, drained soil alpine house, rich, drained soil, sun |
| Propagation | seed in spring after hot water treatment, germ. 3-6 month cuttings in late summer; layering in spring |
| Territory | 7 Northern America 76 Southwestern U.S.A. (CAL California) |