| Name | Ceanothus crassifolius var. planus Abrams |
| Authorship | Abrams |
| Rank | Variety |
| Placed in | Ceanothus crassifolius Torrey |
| GUID | urn:lsid:ipni.org:names:50651-2 |
| Holdings | 3 Specimens held in the Harvard University Herbaria identified as Ceanothus crassifolius var. planus Abrams |
| Identification made in | [no date] (3) |