| Name | Sedum laxum subsp. heckneri (M. Peck) R. T. Clausen |
| Authorship | (M. Peck) R. T. Clausen |
| Rank | Subspecies |
| Placed in | Sedum laxum (Britton) A. Berger |
| Holdings | 5 Specimens held in the Harvard University Herbaria identified as Sedum laxum subsp. heckneri (M. Peck) R. T. Clausen |
| Identification made in | [no date] (5) |