| Scientific Name | Authority | Status |
|---|---|---|
| Spiranthes bonariensis | Lindl. | synonym |
| Pelexia callosa | M.N.Correa | ambiguous synonym |
| Stenorrhynchos bonariense var. robustum | Cogn. | synonym |
| Spiranthes saltensis | Griseb. | ambiguous synonym |
| Pelexia saltensis | (Griseb.) Schltr. | synonym |
| Stenorrhynchos bonariense var. bombyliferum | Cogn. | synonym |
| Pachygenium saltense | (Griseb.) Szlach., R.González & Rutk. | synonym |
| Stenorrhynchos bonariense | (Lindl.) Cogn. | synonym |
| Pachygenium bonariense | (Lindl.) Szlach., R.González & Rutk. | synonym |
| Stenorrhynchos saltense | (Griseb.) Cogn. | synonym |
| Spiranthes bonariensis var. bombylifera | Rchb.f. & Warm. | synonym |
| Pachygenium callosum | Mytnik, Szlach. & Górniak | synonym |
| Gyrostachys bonariensis | (Lindl.) Kuntze | synonym |
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