| Classification | Rhamnaceae: Ceanothus |
| Harvard University Herbaria Barcode(s) | 00425680 |
| Collector | J. T. Howell |
| Collector number | 24298 |
| Country | United States of America |
| State | California |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: California: Marin County |
| Locality | Upper part of Cascade Canyon, Mt. Tamalpais |
| Date Collected | 1948-05-16 |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/3bfeb4c1-c7ff-4a9f-bb76-baaa4ea99b91 |
| Harvard University Herbaria Barcode | 00425680 |
| Herbarium | GH |
| Family | Rhamnaceae |
| Determination | Ceanothus sp. |
| Determination Remarks | [is filed under name] [is Current name] |
| Annotation Text | Ceanothus foliosus x thyrsiflorus |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
