| taxonName | relationship | relatedTaxonName | relatedTaxonRefText | relComments |
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| Cypripedium parviflorum var. pubescens | < | Cypripedium calceolus var. pubescens | Fernald (1950) | |
| Cypripedium parviflorum var. pubescens | < | Cypripedium calceolus var. pubescens | Gleason (1952) | |
| Cypripedium parviflorum var. pubescens | < | Cypripedium calceolus var. pubescens | Radford, Ahles, and Bell (1968) | |
| Cypripedium parviflorum var. pubescens | < | Cypripedium calceolus var. pubescens | Correll (1950)=X. Key to yellow-flowered species adapted from Sheviak (1994). | |
| Cypripedium parviflorum var. pubescens | = | Cypripedium pubescens | | |
| Cypripedium parviflorum var. pubescens | = | Cypripedium pubescens | Small (1933, 1938) | |
| Cypripedium parviflorum var. pubescens | = | Cypripedium pubescens | | |
| Cypripedium parviflorum var. pubescens | = | Cypripedium pubescens | Flora of West Virginia | |
| Cypripedium parviflorum var. pubescens | = | Cypripedium calceolus var. pubescens | Gleason and Cronquist (1991) | |
| Cypripedium parviflorum var. pubescens | = | Cypripedium calceolus var. pubescens | | |
| Cypripedium parviflorum var. pubescens | = | Cypripedium calceolus var. pubescens | Wofford (1989) | |
| Source: Weakley's Flora |
