| Scientific Name | Authority | Status |
|---|---|---|
| Platanthera clavellata var. ophioglossoides | (Fernald) P.M.Br. | synonym |
| Gymnadeniopsis clavellata | (Michx.) Rydb. | synonym |
| Gymnadenia tridentata | (Muhl.) Lindl. | synonym |
| Habenaria clavellata | (Michx.) Spreng. | synonym |
| Orchis tridentata | Muhl. ex Willd. | ambiguous synonym |
| Habenaria clavellata var. wrightii | L.S.Olive | synonym |
| Peristylus clavellatus | (Michx.) Kraenzl. | synonym |
| Gymnadeniopsis clavellata var. ophioglossoides | (Fernald) W.J.Schrenk | synonym |
| Platanthera clavellata f. slaughteri | P.M.Br. | synonym |
| Habenaria tridentata | (Muhl.) Hook. | synonym |
| Orchis clavellata | Michx. | synonym |
| Gymnadeniopsis clavellata f. wrightii | (L.S.Olive) P.M.Br. | synonym |
| Denslovia clavellata | (Michx.) Rydb. | synonym |
| Habenaria clavellata var. ophioglossoides | Fernald | synonym |
| Habenaria maritima | Raf. | ambiguous synonym |
| Gymnadenia tridentata var. clavellata | Alph.Wood | synonym |
| Orchis clavellata var. tridentata | Muhl. | synonym |
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