| Name | Sideroxylon lanuginosum subsp. rigidum (A. Gray) T. D. Pennington |
| Authorship | (A. Gray) T. D. Pennington |
| Rank | Subspecies |
| NomenclaturalStatus | Unknown |
| Placed in | Sideroxylon lanuginosum Michaux |
| Holdings | 5 Specimens held in the Harvard University Herbaria identified as Sideroxylon lanuginosum subsp. rigidum (A. Gray) T. D. Pennington |
| Identification made in | [no date] (5) |
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