| Name | Horkelia californica var. frondosa (Greene) Ertter & Reveal |
| Authorship | (Greene) Ertter & Reveal |
| Rank | Variety |
| Placed in | Horkelia californica Chamisso & Schlechtendal |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Horkelia californica var. frondosa (Greene) Ertter & Reveal |
| Identification made in | 2013 (1) |
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