| Scientific Name | Authority | Status |
|---|---|---|
| Spiranthes simplex | Griseb. | ambiguous synonym |
| Gyrostachys simplex | (Griseb.) Kuntze | synonym |
| Spiranthes cordatiloba | C.Schweinf. | synonym |
| Sarcoglottis simplex | (Griseb.) Schltr. | synonym |
| Spiranthes longiauriculata | C.Schweinf. | synonym |
| Sarcoglottis tenuis | Schltr. | synonym |
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