| Scientific Name | Authority | Status |
|---|---|---|
| Habenaria obtusata var. collectanea | Fernald | synonym |
| Platanthera obtusata var. collectanea | (Fernald) W.J.Schrenk | synonym |
| Orchis obtusata | Banks ex Pursh | synonym |
| Lysiella obtusata | (Banks ex Pursh) Rydb. | synonym |
| Platanthera obtusata f. foliosa | P.M.Br. | synonym |
| Platanthera obtusata f. collectanea | (Fernald) P.M.Br. | synonym |
| Habenaria obtusata | (Banks ex Pursh) Richardson | synonym |
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