Prof. Itay Mayrose Lab – Plant Evolution, Bioinformatics, & Comparative Genomics
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CCDB → Angiosperms → Compositae → Pyrrhopappus
11 species in "Pyrrhopappus" :
| Taxon name | Status | Median (n) |
| Pyrrhopappus carolinianus (Walter) DC. | Accepted | 6 |
| Pyrrhopappus grandiflorus (Nutt.) Nutt. | Accepted | 12 |
| Pyrrhopappus pauciflorus (D. Don) DC. | Accepted | 6 |
| Pyrrhopappus rothrockii A. Gray | Accepted | 6 |
| Pyrrhopappus multicaulis Curtiss ex A. Gray | Unresolved | 6 |
| Pyrrhopappus carolinianus var. carolinianus | Synonym of Pyrrhopappus carolinianus (Walter) DC. | 6 |
| Pyrrhopappus georgianus Shinners | Synonym of Pyrrhopappus carolinianus (Walter) DC. | 6 |
| Scorzonera pinnatifida Michx. | Synonym of Pyrrhopappus carolinianus (Walter) DC. | 6 |
| Pyrrhopappus multicaulis DC. | Synonym of Pyrrhopappus pauciflorus (D. Don) DC. | 6 |
| Pyrrhopappus multicaulis var. geiseri (Shinners) Northington | Synonym of Pyrrhopappus pauciflorus (D. Don) DC. | 6 |
| Pyrrhopappus multicaulis var. multicaulis | Synonym of Pyrrhopappus pauciflorus (D. Don) DC. | 6 |