| Name | Calylophus hartwegii subsp. filifolius (Eastwood) Towner & P. H. Raven |
| Authorship | (Eastwood) Towner & P. H. Raven |
| Rank | Subspecies |
| Placed in | Calylophus hartwegii (Bentham) P. H. Raven |
| Citation | 1970 Madroño 20(5): 243 |
| Holdings | 23 Specimens held in the Harvard University Herbaria identified as Calylophus hartwegii subsp. filifolius (Eastwood) Towner & P. H. Raven |
| Identification made in | [no date] (15), 1600 (2), 1969 (5), 1970 (1) |
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