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CCDB → Angiosperms → Compositae → Petasites → Petasites warrenii H. S. John
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| ! | Petasites warrenii H. S. John | Petasites frigidus var. vitifolius (Greene) Chern. | 30(1) | Asteracea | Ornduff et al. 1963 Amer. J. Bot. | ||
| ! | Petasites warrenii H. S. John | Petasites frigidus var. vitifolius (Greene) Chern. | 60 | Fedorov, 1974 | Ornduff et al. 1963 | ||
| ! | Petasites warrenii H. S. John | Petasites frigidus var. vitifolius (Greene) Chern. | 30 | Cave1963 | Ornduff et al. 1963 |