| Haplopappus anthylloides Meyen & Walp. |
Accepted |
5 |
| Haplopappus cerberoanus (J. Rémy) Reiche |
Accepted |
5 |
| Haplopappus chrysanthemifolius (Less.) DC. |
Accepted |
5 |
| Haplopappus deserticola Phil. |
Accepted |
5 |
| Haplopappus diplopappus J. Rémy |
Accepted |
5 |
| Haplopappus foliosus DC. |
Accepted |
5 |
| Haplopappus glutinosus Cass. |
Accepted |
5 |
| Haplopappus grindelioides (Less.) DC. |
Accepted |
5 |
| Haplopappus hirtellus Phil. |
Accepted |
5 |
| Haplopappus macraeanus (J. Rémy) Reiche |
Accepted |
5 |
| Haplopappus macrocephalus (Poepp.) DC. |
Accepted |
5 |
| Haplopappus marginalis Phil. |
Accepted |
5 |
| Haplopappus mucronatus (Hook. & Arn.) Hook. & Arn. ex B. D. Jacks. |
Accepted |
5 |
| Haplopappus philippii (Kuntze) H. M. Hall |
Accepted |
5 |
| Haplopappus pinnatifidus Nutt. |
Accepted |
5 |
| Haplopappus platylepis Phil. |
Accepted |
5 |
| Haplopappus poeppigianus (Hook. & Arn.) A. Gray |
Accepted |
5 |
| Haplopappus prunelloides (Poepp.) Poepp. ex DC. |
Accepted |
12 |
| Haplopappus pulchellus (Bertero) DC. |
Accepted |
6 |
| Haplopappus reicheanus H. M. Hall |
Accepted |
5 |
| Haplopappus remyanus Wedd. |
Accepted |
5 |
| Haplopappus rengifoanus J. Rémy |
Accepted |
5 |
| Haplopappus saxatilis (J. Rémy) Reiche |
Accepted |
5 |
| Haplopappus schumannii (Kuntze) G. K. Br. & W. D. Clark |
Accepted |
5 |
| Haplopappus scrobiculatus (Nees) DC. |
Accepted |
6 |
| Haplopappus stolpii Phil. |
Accepted |
5 |
| Haplopappus taeda Reiche |
Accepted |
5 |
| Haplopappus uncinatus Phil. |
Accepted |
5 |
| Haplopappus velutinus J. Rémy |
Accepted |
5 |
| Haplopappus villaneuvae Phil. |
Accepted |
5 |
| Haplopappus donianus S. Bip. |
Unresolved |
5 |
| Haplopappus gracilis Brandegee |
Unresolved |
2 |
| Haplopappus meyenii (W. × . H. C. Remy) Reiche |
Unresolved |
5 |
| Haplopappus nuttallii Clem. & E. G. Clem. |
Unresolved |
8 |
| Haplopappus parvifolius (DC.) A. Gray |
Unresolved |
5 |
| Haplopappus pedunculosus Remy |
Unresolved |
5 |
| Haplopappus reticulatus (Phil.) Reiche |
Unresolved |
5 |
| Haplopappus scopulorum (M. E. Jones) S. F. Blake |
Synonym of Chrysothamnus scopulorum (M. E. Jones) Urbatsch & R. P. Roberts & Neubig |
9 |
| Haplopappus hallii A. Gray |
Synonym of Columbiadoria hallii (A. Gray) G. L. Nesom |
9 |
| Haplopappus divaricatus (Nutt.) A. Gray |
Synonym of Croptilon divaricatum (Nutt.) Raf. |
4 |
| Haplopappus validus subsp. torreyi E. B. Sm. |
Synonym of Croptilon hookerianum (Torr. & A. Gray) House |
6 |
| Haplopappus validus subsp. graniticus E. B. Sm. |
Synonym of Croptilon hookerianum var. graniticum (E. B. Sm.) E. B. Sm. |
7 |
| Haplopappus validus subsp. validus |
Synonym of Croptilon hookerianum var. validum (Rydb.) E. B. Sm. |
5 |
| Haplopappus rigidifolius E. B. Sm. |
Synonym of Croptilon rigidifolium (E. B. Sm.) E. B. Sm. |
5 |
| Haplopappus arborescens (A. Gray) H. M. Hall |
Synonym of Ericameria arborescens (A. Gray) Greene |
9 |
| Haplopappus bloomeri var. angustatus A. Gray |
Synonym of Ericameria bloomeri (A. Gray) J. F. Macbr. |
9 |
| Haplopappus propinquus (A. Gray) S. F. Blake |
Synonym of Ericameria brachylepis (A. Gray) H. M. Hall |
18 |
| Haplopappus bloomeri subsp. compactus H. M. Hall |
Synonym of Ericameria compacta (H. M. Hall) G. L. Nesom |
9 |
| Haplopappus compactus (H. M. Hall) L. C. Anderson |
Synonym of Ericameria compacta (H. M. Hall) G. L. Nesom |
9 |
| Haplopappus cooperi (A. Gray) H. M. Hall |
Synonym of Ericameria cooperi (A. Gray) H. M. Hall |
9 |
| Haplopappus crispus L. C. Anderson |
Synonym of Ericameria crispa (L. C. Anderson) G. L. Nesom |
9 |
| Haplopappus cuneatus A. Gray |
Synonym of Ericameria cuneata (A. Gray) McClatchie |
9 |
| Haplopappus macronema (Nutt.) A. Gray |
Synonym of Ericameria discoidea (Nutt.) G. L. Nesom |
9 |
| Haplopappus ericoides (Less.) Hook. & Arn. |
Synonym of Ericameria ericoides (Less.) Nutt. ex Jeps. |
9 |
| Haplopappus ericoides subsp. blakei C. B. Wolf |
Synonym of Ericameria ericoides (Less.) Nutt. ex Jeps. |
9 |
| Haplopappus ericoides subsp. ericoides |
Synonym of Ericameria ericoides (Less.) Nutt. ex Jeps. |
9 |
| Haplopappus eastwoodae H. M. Hall |
Synonym of Ericameria fasciculata (Eastw.) J. F. Macbr. |
9 |
| Haplopappus gilmanii S. F. Blake |
Synonym of Ericameria gilmanii (S. F. Blake) G. L. Nesom |
9 |
| Haplopappus juarezensis Moran |
Synonym of Ericameria juarezensis (Moran) Urbatsch |
9 |
| Haplopappus laricifolius A. Gray |
Synonym of Ericameria laricifolia (A. Gray) Shinners |
9 |
| Haplopappus linearifolius DC. |
Synonym of Ericameria linearifolia (DC.) Urbatsch & Wussow |
9 |
| Haplopappus nanus (Nutt.) Eaton |
Synonym of Ericameria nana Nutt. |
9 |
| Haplopappus spinulosus subsp. scabrellus (Greene) H. M. Hall |
Synonym of Ericameria nauseosa var. ammophila L. C. Anderson |
4 |
| Haplopappus spinulosus subsp. scabrellus (Greene) H. M. Hall |
Synonym of Ericameria nauseosa var. ammophila L. C. Anderson |
4 |
| Haplopappus spinulosus var. scabrellus (Greene) S. F. Blake |
Synonym of Ericameria nauseosa var. ammophila L. C. Anderson |
4 |
| Haplopappus rydbergii S. F. Blake |
Synonym of Ericameria obovata (Rydb.) G. L. Nesom |
18 |
| Haplopappus palmeri A. Gray |
Synonym of Ericameria palmeri (A. Gray) H. M. Hall |
9 |
| Haplopappus parishii (Greene) S. F. Blake |
Synonym of Ericameria parishii (Greene) H. M. Hall |
9 |
| Haplopappus parishii (Greene) S. F. Blake |
Synonym of Ericameria parishii (Greene) H. M. Hall |
9 |
| Haplopappus arborescens subsp. peninsularis Moran |
Synonym of Ericameria parishii var. peninsularis (Moran) G. L. Nesom |
9 |
| Haplopappus resinosus (Nutt.) A. Gray |
Synonym of Ericameria resinosa Nutt. |
9 |
| Haplopappus suffruticosus (Nutt.) A. Gray |
Synonym of Ericameria suffruticosa (Nutt.) G. L. Nesom |
9 |
| Haplopappus watsonii A. Gray |
Synonym of Ericameria watsonii (A. Gray) G. L. Nesom |
9 |
| Haplopappus zionis L. C. Anderson |
Synonym of Ericameria zionis (L. C. Anderson) G. L. Nesom |
9 |
| Haplopappus pectinatus Phil. |
Synonym of Grindelia anethifolia (Phil.) A. Bartoli & Tortosa |
6 |
| Haplopappus ciliatus (Nutt.) DC. |
Synonym of Grindelia ciliata (Nutt.) Spreng. |
6 |
| Haplopappus bustillosianus J. Rémy |
Synonym of Haplopappus glutinosus Cass. |
5 |
| Haplopappus paucidentatus Phil. |
Synonym of Haplopappus glutinosus Cass. |
5 |
| Haplopappus integerrimus var. integerrimus |
Synonym of Haplopappus integerrimus (Hook. & Arn.) H. M. Hall |
5 |
| Haplopappus philippii H. M. Hall |
Synonym of Haplopappus philippii (Kuntze) H. M. Hall |
5 |
| Grindelia pulchella Bertero |
Synonym of Haplopappus pulchellus (Bertero) DC. |
6 |
| Haplopappus scaposus Remy |
Synonym of Haplopappus scaposus J. Rémy |
9 |
| Haplopappus sericeus Phil. |
Synonym of Haplopappus schumannii (Kuntze) G. K. Br. & W. D. Clark |
5 |
| Haplopappus cuneifolius Nutt. |
Synonym of Haplopappus scrobiculatus (Nees) DC. |
6 |
| Haplopappus setigera (Phil.) Meigen |
Synonym of Haplopappus setigera Phil. |
5 |
| Haplopappus setigera Meigen |
Synonym of Haplopappus setigera Phil. |
5 |
| Haplopappus brickellioides S. F. Blake |
Synonym of Hazardia brickellioides (S. F. Blake) W. D. Clark |
6 |
| Haplopappus canus (A. Gray) S. F. Blake |
Synonym of Hazardia cana (A. Gray) Greene |
5 |
| Haplopappus enormidens Moran |
Synonym of Hazardia enormidens (Moran) W. D. Clark |
5 |
| Haplopappus rosaricus Moran |
Synonym of Hazardia rosarica (Moran) W. D. Clark |
5 |
| Haplopappus squarrosus Hook. & Arn. |
Synonym of Hazardia squarrosa (Hook. & Arn.) Greene |
5 |
| Haplopappus squarrosus subsp. squarrosus |
Synonym of Hazardia squarrosa (Hook. & Arn.) Greene |
5 |
| Haplopappus squarrosus subsp. squarrosus |
Synonym of Hazardia squarrosa (Hook. & Arn.) Greene |
5 |
| Haplopappus squarrosus subsp. grindelioides (DC.) D. D. Keck |
Synonym of Hazardia squarrosa var. grindelioides (DC.) W. D. Clark |
5 |
| Haplopappus squarrosus subsp. stenolepis H. M. Hall |
Synonym of Hazardia stenolepis (H. M. Hall) Hoover |
5 |
| Haplopappus vernicosus Brandegee |
Synonym of Hazardia vernicosa (Brandegee) W. D. Clark |
5 |
| Haplopappus whitneyi A. Gray |
Synonym of Hazardia whitneyi (A. Gray) Greene |
4 |
| Haplopappus acradenius (Greene) S. F. Blake |
Synonym of Isocoma acradenia (Greene) Greene |
6 |
| Haplopappus acradenius subsp. eremophilus (Greene) H. M. Hall |
Synonym of Isocoma acradenia var. eremophila (Greene) G. L. Nesom |
6 |
| Haplopappus hartwegii (A. Gray) S. F. Blake |
Synonym of Isocoma hartwegii (A. Gray) Greene |
6 |
| Haplopappus venetus subsp. furfuraceus (Greene) H. M. Hall |
Synonym of Isocoma menziesii var. decumbens (Greene) G. L. Nesom |
12 |
| Haplopappus venetus subsp. vernonioides (Nutt.) H. M. Hall |
Synonym of Isocoma menziesii var. vernonioides (Nutt.) G. L. Nesom |
6 |
| Haplopappus venetus subsp. vernonioides (Nutt.) H. M. Hall |
Synonym of Isocoma menziesii var. vernonioides (Nutt.) G. L. Nesom |
6 |
| Haplopappus pluriflorus (Torr. & A. Gray) H. M. Hall |
Synonym of Isocoma pluriflora (Torr. & A. Gray) Greene |
12 |
| Haplopappus venetus (Kunth) S. F. Blake |
Synonym of Isocoma veneta (Kunth) Greene |
6 |
| Haplopappus venetus subsp. venetus |
Synonym of Isocoma veneta (Kunth) Greene |
6 |
| Haplopappus microcephalus Cronquist |
Synonym of Lorandersonia microcephala (Cronquist) Urbatsch & R. P. Roberts & Neubig |
9 |
| Haplopappus peirsonii (D. D. Keck) J. T. Howell |
Synonym of Lorandersonia peirsonii (D. D. Keck) Urbatsch & R. P. Roberts & Neubig |
45 |
| Haplopappus arenarius Benth. |
Synonym of Machaeranthera arenaria (Benth.) Shinners |
4 |
| Haplopappus wigginsii S. F. Blake |
Synonym of Machaeranthera wigginsii (S. F. Blake) R. L. Hartm. |
4 |
| Haplopappus stenophyllus A. Gray |
Synonym of Nestotus stenophyllus (A. Gray) R. P. Roberts & Urbatsch & Neubig |
18 |
| Haplopappus calendulaceus Griseb. |
Synonym of Noticastrum acuminatum (DC.) Cuatrec. |
9 |
| Haplopappus engelmannii (A. Gray) H. M. Hall |
Synonym of Oonopsis engelmannii (A. Gray) Greene |
10 |
| Haplopappus fremontii subsp. fremontii |
Synonym of Oonopsis foliosa Greene |
10 |
| Haplopappus fremontii subsp. monocephalus (A. Nelson) H. M. Hall |
Synonym of Oonopsis foliosa var. monocephala (A. Nelson) Kartesz & Gandhi |
10 |
| Haplopappus multicaulis (Nutt.) A. Gray |
Synonym of Oonopsis multicaulis (Nutt.) Greene |
4 |
| Haplopappus fremontii subsp. wardii (A. Gray) H. M. Hall |
Synonym of Oonopsis wardii (A. Gray) Greene |
5 |
| Haplopappus parryi A. Gray |
Synonym of Oreochrysum parryi (A. Gray) Rydb. |
9 |
| Haplopappus stoloniferus DC. |
Synonym of Osbertia stolonifera (DC.) Greene |
5 |
| Haplopappus apargioides A. Gray |
Synonym of Pyrrocoma apargioides (A. Gray) Greene |
6 |
| Haplopappus carthamoides (Hook.) A. Gray |
Synonym of Pyrrocoma carthamoides Hook. |
6 |
| Haplopappus clementis (Rydb.) S. F. Blake |
Synonym of Pyrrocoma clementis Rydb. |
18 |
| Haplopappus croceus A. Gray |
Synonym of Pyrrocoma crocea (A. Gray) Greene |
6 |
| Haplopappus hirtus A. Gray |
Synonym of Pyrrocoma hirta (A. Gray) Greene |
12 |
| Haplopappus insecticruris L. F. Hend. |
Synonym of Pyrrocoma insecticruris (L. F. Hend.) A. Heller |
18 |
| Haplopappus lanceolatus subsp. lanceolatus |
Synonym of Pyrrocoma lanceolata (Hook.) Greene |
12 |
| Haplopappus liatriformis (Greene) H. S. John |
Synonym of Pyrrocoma liatriformis Greene |
18 |
| Haplopappus racemosus (Nutt.) Torr. |
Synonym of Pyrrocoma racemosa (Nutt.) Torr. & A. Gray |
6 |
| Haplopappus racemosus subsp. brachycephalus (A. Nelson) H. M. Hall |
Synonym of Pyrrocoma racemosa var. paniculata (Nutt.) Kartesz & Gandhi |
6 |
| Haplopappus racemosus subsp. glomeratus (Nutt.) H. M. Hall |
Synonym of Pyrrocoma racemosa var. paniculata (Nutt.) Kartesz & Gandhi |
6 |
| Haplopappus radiatus (Nutt.) Cronquist |
Synonym of Pyrrocoma radiata Nutt. |
18 |
| Haplopappus annuus (Rydb.) Cory |
Synonym of Rayjacksonia annua (Rydb.) R. L. Hartm. & M. A. Lane |
6 |
| Haplopappus aureus A. Gray |
Synonym of Rayjacksonia aurea (A. Gray) R. L. Hartm. & M. A. Lane |
6 |
| Haplopappus phyllocephalus DC. |
Synonym of Rayjacksonia phyllocephala (DC.) R. L. Hartm. & M. A. Lane |
6 |
| Haplopappus acaulis (Nutt.) A. Gray |
Synonym of Stenotus acaulis (Nutt.) Nutt. |
18 |
| Haplopappus acaulis subsp. acaulis |
Synonym of Stenotus acaulis (Nutt.) Nutt. |
18 |
| Haplopappus acaulis subsp. glabratus (D. C. Eaton) H. M. Hall |
Synonym of Stenotus acaulis (Nutt.) Nutt. |
18 |
| Haplopappus armerioides (Nutt.) A. Gray |
Synonym of Stenotus armerioides Nutt. |
9 |
| Haplopappus lanuginosus subsp. andersonii (Rydb.) H. M. Hall |
Synonym of Stenotus lanuginosus var. andersonii (Rydb.) H. M. Hall |
9 |
| Haplopappus pulvinatus Moran |
Synonym of Stenotus pulvinatus (Moran) G. L. Nesom |
9 |
| Haplopappus alpinus L. C. Anderson & Goodrich |
Synonym of Toiyabea alpina (L. C. Anderson & Goodrich) R. P. Roberts & Urbatsch & Neubig |
9 |
| Haplopappus eximius H. M. Hall |
Synonym of Tonestus eximius (H. M. Hall) A. Nelson & J. F. Macbr. |
9 |
| Haplopappus eximius H. M. Hall |
Synonym of Tonestus eximius (H. M. Hall) A. Nelson & J. F. Macbr. |
9 |
| Haplopappus graniticus Tiehm & L. M. Shultz |
Synonym of Tonestus graniticus (Tiehm & L. M. Shultz) G. L. Nesom & D. R. Morgan |
9 |
| Haplopappus lyallii A. Gray |
Synonym of Tonestus lyallii (A. Gray) A. Nelson |
9 |
| Haplopappus aberrans (A. Nelson) H. M. Hall |
Synonym of Triniteurybia aberrans (A. Nelson) Brouillet & Urbatsch & R. P. Roberts |
9 |
| Haplopappus gracilis (Nutt.) A. Gray |
Synonym of Xanthisma gracile (Nutt.) D. R. Morgan & R. L. Hartm. |
2 |
| Haplopappus ravenii R. C. Jacks. |
Synonym of Xanthisma gracile (Nutt.) D. R. Morgan & R. L. Hartm. |
2 |
| Haplopappus ravenii R. C. Jacks. |
Synonym of Xanthisma gracile (Nutt.) D. R. Morgan & R. L. Hartm. |
2 |
| Haplopappus rhizomatus M. C. Johnst. |
Synonym of Xanthisma rhizomatum (M. C. Johnst.) D. R. Morgan & R. L. Hartm. |
4 |
| Haplopappus spinulosus (Pursh) DC. |
Synonym of Xanthisma spinulosum (Pursh) D. R. Morgan & R. L. Hartm. |
4 |
| Haplopappus spinulosus subsp. australis (Greene) H. M. Hall |
Synonym of Xanthisma spinulosum (Pursh) D. R. Morgan & R. L. Hartm. |
4 |
| Haplopappus spinulosus subsp. cotula (Small) H. M. Hall |
Synonym of Xanthisma spinulosum (Pursh) D. R. Morgan & R. L. Hartm. |
4 |
| Haplopappus spinulosus subsp. cotula (Small) H. M. Hall |
Synonym of Xanthisma spinulosum (Pursh) D. R. Morgan & R. L. Hartm. |
4 |
| Haplopappus spinulosus subsp. laevis (Wooton & Standl.) H. M. Hall |
Synonym of Xanthisma spinulosum (Pursh) D. R. Morgan & R. L. Hartm. |
4 |
| Haplopappus spinulosus subsp. spinulosus |
Synonym of Xanthisma spinulosum (Pursh) D. R. Morgan & R. L. Hartm. |
4 |
| Haplopappus spinulosus subsp. spinulosus |
Synonym of Xanthisma spinulosum (Pursh) D. R. Morgan & R. L. Hartm. |
4 |
| Haplopappus spinulosus var. spinulosus |
Synonym of Xanthisma spinulosum (Pursh) D. R. Morgan & R. L. Hartm. |
4 |
| Haplopappus texensis R. C. Jacks. |
Synonym of Xanthisma spinulosum (Pursh) D. R. Morgan & R. L. Hartm. |
4 |
| Haplopappus spinulosus subsp. glaberrimus (Rydb.) H. M. Hall |
Synonym of Xanthisma spinulosum var. glaberrimum (Rydb.) D. R. Morgan & R. L. Hartm. |
4 |
| Haplopappus spinulosus var. glaberrimus (Rydb.) S. F. Blake |
Synonym of Xanthisma spinulosum var. glaberrimum (Rydb.) D. R. Morgan & R. L. Hartm. |
4 |
| Haplopappus gooddingii (A. Nelson) Munz & I. M. Johnst. |
Synonym of Xanthisma spinulosum var. gooddingii (A. Nelson) D. R. Morgan & R. L. Hartm. |
4 |
| Haplopappus havardii Waterf. |
Synonym of Xanthisma viscidum (Wooton & Standl.) D. R. Morgan & R. L. Hartm. |
4 |
| Haplopappus trianthus S. F. Blake |
Synonym of Xylothamia triantha (S. F. Blake) G. L. Nesom |
9 |