| Name | Spiraea densiflora var. splendens (Baumann ex K. Koch) C. L. Hitchcock |
| Authorship | (Baumann ex K. Koch) C. L. Hitchcock |
| Rank | Variety |
| Placed in | Spiraea densiflora Nuttall ex Torrey & A. Gray |
| Holdings | 16 Specimens held in the Harvard University Herbaria identified as Spiraea densiflora var. splendens (Baumann ex K. Koch) C. L. Hitchcock |
| Identification made in | [no date] (16) |