| Name | Habenaria longicauda subsp. ecalcarata Snuverink & Westra |
| Authorship | Snuverink & Westra |
| Rank | Subspecies |
| NomenclaturalStatus | NomLeg |
| Placed in | Habenaria longicauda Hooker |
| Citation | 1981 Acta Bot. Neerl. 30: 237 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Habenaria longicauda subsp. ecalcarata Snuverink & Westra |
| Identification made in | 1979 (2) |
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