| Name | Riddellia arachnoidea A. Gray |
| Authorship | A. Gray |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Riddellia |
| GUID | urn:lsid:ipni.org:names:241482-1 |
| Citation | 1849 Mem. Amer. Acad. Arts n.s. 4: 94 |
| Holdings | 10 Specimens held in the Harvard University Herbaria identified as Riddellia arachnoidea A. Gray |
| Identification made in | [no date] (10) |
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