| Name | Chara gymnopus var. michauxii (A. Braun) Allen |
| Authorship | (A. Braun) Allen |
| Rank | Variety |
| Placed in | Chara gymnopus A. Braun |
| Holdings | 5 Specimens held in the Harvard University Herbaria identified as Chara gymnopus var. michauxii (A. Braun) Allen |
| Identification made in | [no date] (5) |