| Name | Lycopodium obscurum var. dendroideum (Michaux) D. C. Eaton |
| Authorship | (Michaux) D. C. Eaton |
| Rank | Variety |
| Placed in | Lycopodium obscurum Linnaeus |
| Holdings | 9 Specimens held in the Harvard University Herbaria identified as Lycopodium obscurum var. dendroideum (Michaux) D. C. Eaton |
| Identification made in | [no date] (9) |