| Name | Rhodymenia palmata f. angustifolia Kjellman |
| Authorship | Kjellman |
| Rank | Forma |
| Placed in | Rhodymenia palmata (Linnaeus) Greville |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Rhodymenia palmata f. angustifolia Kjellman |
| Identification made in | [no date] (1) |