| Name | Simsia calva (A. Gray & Engelmann) A. Gray |
| Authorship | (A. Gray & Engelmann) A. Gray |
| Rank | Species |
| NomenclaturalStatus | Unknown |
| Placed in | Simsia Persoon |
| Contains | Simsia calva var. subaristata (Gray) S. F. Blake |
| Citation | 1850 Boston J. Nat. Hist. 6: 228 |
| Holdings | 6 Specimens held in the Harvard University Herbaria identified as Simsia calva (A. Gray & Engelmann) A. Gray |
| Identification made in | [no date] (2), 1913 (1), 1987 (3) |