| Name | Rigiopappus leptocladus var. longiaristatus A. Gray |
| Authorship | A. Gray |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Rigiopappus leptocladus A. Gray |
| GUID | urn:lsid:ipni.org:names:221384-2 |
| Citation | 1884 Syn. Fl. N. Amer. 1(2): 339 |
| Holdings | 3 Specimens held in the Harvard University Herbaria identified as Rigiopappus leptocladus var. longiaristatus A. Gray |
| Identification made in | [no date] (2), 2007 (1) |
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