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CCDB → Angiosperms → Compositae → Pyrrocoma → Haplopappus racemosus (Nutt.) Torr.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| ! | Haplopappus racemosus (Nutt.) Torr. | Pyrrocoma racemosa (Nutt.) Torr. & A. Gray | 12 | Fedorov, 1974 | Raven et al. 1960 |