| Name | Alsia californica var. flagellifera Renauld & Cardot |
| Authorship | Renauld & Cardot |
| Rank | Variety |
| Placed in | Alsia californica (Hooker & Arnott) Sullivant |
| Citation | 1888 Rev. Bryol. 15: 71. |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Alsia californica var. flagellifera Renauld & Cardot |
| Identification made in | [no date] (1) |