| Name | Hedeoma nana subsp. macrocalyx W. S. Stewart |
| Authorship | W. S. Stewart |
| Rank | Subspecies |
| NomenclaturalStatus | NomLeg |
| Placed in | Hedeoma nana (Torrey) Briquet |
| GUID | urn:lsid:ipni.org:names:60452707-2 |
| Holdings | 6 Specimens held in the Harvard University Herbaria identified as Hedeoma nana subsp. macrocalyx W. S. Stewart |
| Identification made in | [no date] (4), 1937 (1), 1968 (1) |