| Thelypodium stenopetalum S. Watson | | a | | Thelypodium stenopetalumS. Watson | |
| Thelypodium suffrutescens Rollins | Hesperidanthus suffrutescens (Rollins) Al-Shehbaz | | | Thelypodium suffrutescensRollins | Hesperidanthus suffrutescens(Rollins) Al-Shehbaz |
| Thelypodium eucosum B. L. Rob. | | a | | Thelypodium eucosumB. L. Rob. | |
| Thelypodium howellii S. Watson | | a | | Thelypodium howelliiS. Watson | |
| Thelypodium howellii S. Watson subsp. howellii | | a | i | Thelypodium howelliiS. Watson subsp. howellii | |
| Thelypodium howellii S. Watson subsp. spectabilis (M. Peck) Al-Shehbaz | | a | i | Thelypodium howelliiS. Watson subsp. spectabilis (M. Peck) Al-Shehbaz | |
| Thelypodium howellii S. Watson var. spectabilis M. Peck | Thelypodium howellii S. Watson subsp. spectabilis (M. Peck) Al-Shehbaz | | i | Thelypodium howelliiS. Watson var.spectabilis M. Peck | Thelypodium howelliiS. Watson subsp. spectabilis (M. Peck) Al-Shehbaz |
| Thelypodium wrightii A. Gray | | a | | Thelypodium wrightiiA. Gray | |
| Thelypodium wrightii A. Gray subsp. wrightii | | a | i | Thelypodium wrightiiA. Gray subsp. wrightii | |
| Thelypodium wrightii A. Gray subsp. oklahomense Al-Shehbaz | | a | i | Thelypodium wrightiiA. Gray subsp. oklahomense Al-Shehbaz | |
| Thelypodium integrifolium subsp. affine | | a | i | Thelypodium integrifoliumsubsp. affine | |
| Thelypodium laciniatum | | a | | Thelypodium laciniatum | |
| Thelypodium milleflorum | | a | | Thelypodium milleflorum | |
| Thelypodium crenatum Greene | Lepidium crenatum (Greene) Rydb. | | | Thelypodium crenatumGreene | Lepidium crenatum(Greene) Rydb. |
| Thelypodium micranthum (A. Gray) S. Watson | Pennellia micrantha (A. Gray) Nieuwl. | | | Thelypodium micranthum(A. Gray) S. Watson | Pennellia micrantha(A. Gray) Nieuwl. |
| Thelypodium elegans M. E. Jones | Thelypodiopsis elegans (M. E. Jones) Rydb. | | | Thelypodium elegansM. E. Jones | Thelypodiopsis elegans(M. E. Jones) Rydb. |