| Name | Ruellia humilis f. grisea Fernald |
| Authorship | Fernald |
| Rank | Forma |
| NomenclaturalStatus | NomLeg |
| Placed in | Ruellia humilis Nuttall |
| GUID | urn:lsid:ipni.org:names:294069-2 |
| Citation | 1945 Rhodora 47: 54 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Ruellia humilis f. grisea Fernald |
| Identification made in | [no date] (1) |
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