| Name | Ceanothus integerrimus var. macrothyrsus (Torrey) G. T. Benson |
| Authorship | (Torrey) G. T. Benson |
| Rank | Variety |
| Placed in | Ceanothus integerrimus Hooker & Arnott |
| GUID | urn:lsid:ipni.org:names:1158294-2 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Ceanothus integerrimus var. macrothyrsus (Torrey) G. T. Benson |
| Identification made in | [no date] (2) |