| Scientific Name | Authority | Status |
|---|---|---|
| Calceolus hirsutus | (Mill.) Nieuwl. | synonym |
| Cypripedium catesbianum | Raf. | synonym |
| Cypripedium acaule f. albiflora | E.L.Rand & Redfield | synonym |
| Cypripedium vittatum var. planum | Raf. | synonym |
| Fissipes acaulis | (Aiton) Small | synonym |
| Cypripedium hirsutum | Mill. | synonym |
| Fissipes hirsuta | (Mill.) Farw. | synonym |
| Fissipes hirsuta f. albiflora | (E.L.Rand & Redfield) Farw. | synonym |
| Cypripedium acaule f. lancifolia | House | synonym |
| Cypripedium humile | Salisb. | synonym |
| Cypripedium acaule f. biflorum | P.M.Br. | synonym |
| Fissipes acaulis f. lancifolia | House | synonym |
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