| Hymenopappus artemisiifolius DC. |
Accepted |
17 |
| Hymenopappus artemisiifolius var. riograndensis B. L. Turner |
Accepted |
17 |
| Hymenopappus biennis B. L. Turner |
Accepted |
17 |
| Hymenopappus filifolius Hook. |
Accepted |
17 |
| Hymenopappus filifolius var. cinereus (Rydb.) I. M. Johnst. |
Accepted |
17 |
| Hymenopappus filifolius var. lugens (Greene) Jeps. |
Accepted |
17 |
| Hymenopappus filifolius var. luteus (Nutt.) B. L. Turner |
Accepted |
17 |
| Hymenopappus filifolius var. nanus (Rydb.) B. L. Turner |
Accepted |
17 |
| Hymenopappus filifolius var. nudipes (Maguire) B. L. Turner |
Accepted |
17 |
| Hymenopappus filifolius var. parvulus (Greene) B. L. Turner |
Accepted |
17 |
| Hymenopappus filifolius var. pauciflorus (I. M. Johnst.) B. L. Turner |
Accepted |
17 |
| Hymenopappus filifolius var. polycephalus (Osterh.) B. L. Turner |
Accepted |
34 |
| Hymenopappus filifolius var. tomentosus (Rydb.) B. L. Turner |
Accepted |
17 |
| Hymenopappus flavescens A. Gray |
Accepted |
17 |
| Hymenopappus flavescens var. canotomentosus A. Gray |
Accepted |
17 |
| Hymenopappus mexicanus A. Gray |
Accepted |
17 |
| Hymenopappus newberryi I. M. Johnst. |
Accepted |
17 |
| Hymenopappus radiatus Rose |
Accepted |
17 |
| Hymenopappus scabiosaeus L'Hér. |
Accepted |
17 |
| Hymenopappus scabiosaeus var. corymbosus (Torr. & A. Gray) B. L. Turner |
Accepted |
17 |
| Hymenopappus tenuifolius Pursh |
Accepted |
17 |
| Hymenopappus tenuifolius Nutt. ex Torr. & A. Gray |
Unresolved |
17 |
| Hymenopappus artemisiifolius var. artemisiifolius |
Synonym of Hymenopappus artemisiifolius DC. |
17 |
| Hymenopappus artemisiifolius var. riograndensis Hook. |
Synonym of Hymenopappus artemisiifolius var. riograndensis B. L. Turner |
17 |
| Hymenopappus artemisiifolius var. riograndensis None |
Synonym of Hymenopappus artemisiifolius var. riograndensis B. L. Turner |
17 |
| Hymenopappus filifolius var. filifolius |
Synonym of Hymenopappus filifolius Hook. |
17 |
| Hymenopappus lugens Greene |
Synonym of Hymenopappus filifolius var. lugens (Greene) Jeps. |
17 |
| Hymenopappus filifolius var. nudipes None |
Synonym of Hymenopappus filifolius var. nudipes (Maguire) B. L. Turner |
17 |
| Hymenopappus filifolius var. parvulus None |
Synonym of Hymenopappus filifolius var. parvulus (Greene) B. L. Turner |
17 |
| Hymenopappus pauciflorus I. M. Johnst. |
Synonym of Hymenopappus filifolius var. pauciflorus (I. M. Johnst.) B. L. Turner |
17 |
| Hymenopappus filifolius var. polycephalus |
Synonym of Hymenopappus filifolius var. polycephalus (Osterh.) B. L. Turner |
34 |
| Hymenopappus filifolius var. polycephalus None |
Synonym of Hymenopappus filifolius var. polycephalus (Osterh.) B. L. Turner |
34 |
| Hymenopappus filifolius var. tomentosus None |
Synonym of Hymenopappus filifolius var. tomentosus (Rydb.) B. L. Turner |
17 |
| Hymenopappus flavescens var. flavescens |
Synonym of Hymenopappus flavescens A. Gray |
17 |
| Hymenopappus newberryi None |
Synonym of Hymenopappus newberryi I. M. Johnst. |
17 |
| Hymenopappus radiatus None |
Synonym of Hymenopappus radiatus Rose |
17 |
| Hymenopappus scabiosaeus var. scabiosaeus |
Synonym of Hymenopappus scabiosaeus L'Hér. |
17 |
| Hymenopappus scabiosaeus var. corymbosus None |
Synonym of Hymenopappus scabiosaeus var. corymbosus (Torr. & A. Gray) B. L. Turner |
17 |