| Parthenium alpinum (Nutt.) Torr. & A. Gray |
Accepted |
18 |
| Parthenium argentatum A. Gray |
Accepted |
27 |
| Parthenium bipinnatifidum (Ortega) Rollins |
Accepted |
12 |
| Parthenium confertum A. Gray |
Accepted |
35 |
| Parthenium fruticosum Less. ex Schltdl. & Cham. |
Accepted |
18 |
| Parthenium hysterophorus L. |
Accepted |
17 |
| Parthenium incanum Kunth |
Accepted |
27 |
| Parthenium integrifolium L. |
Accepted |
36 |
| Parthenium ligulatum (M. E. Jones) Barneby |
Accepted |
18 |
| Parthenium rollinsianum Rzed. |
Accepted |
18 |
| Parthenium schottii Greenm. ex Millsp. & Chase |
Accepted |
18 |
| Parthenium tomentosum DC. |
Accepted |
18 |
| Parthenium hysterophorus Adans. |
Unresolved |
17 |
| Parthenium alpinum var. alpinum |
Synonym of Parthenium alpinum (Nutt.) Torr. & A. Gray |
18 |
| Parthenium alpinum var. tetraneuris (Barneby) Rollins |
Synonym of Parthenium alpinum (Nutt.) Torr. & A. Gray |
18 |
| Parthenium argentatum var. argentatum |
Synonym of Parthenium argentatum A. Gray |
27 |
| Parthenium confertum var. lyratum (A. Gray) Rollins |
Synonym of Parthenium confertum A. Gray |
35 |
| Parthenium lyratum (A. Gray) A. Gray |
Synonym of Parthenium confertum A. Gray |
35 |
| Parthenium fruticosum var. fruticosum |
Synonym of Parthenium fruticosum Less. ex Schltdl. & Cham. |
18 |
| Parthenium glomeratum Rollins |
Synonym of Parthenium hysterophorus L. |
17 |
| Parthenium hispidum Raf. |
Synonym of Parthenium integrifolium L. |
36 |
| Parthenium hispidum var. auriculatum (Britton) Rollins |
Synonym of Parthenium integrifolium L. |
36 |
| Parthenium hispidum var. hispidum |
Synonym of Parthenium integrifolium L. |
36 |
| Parthenium schottii Greenm. ex M. ＆. Chase |
Synonym of Parthenium schottii Greenm. ex Millsp. & Chase |
18 |
| Parthenium stramonium Greene |
Synonym of Parthenium tomentosum var. stramonium (Greene) Rollins |
18 |