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CCDB → Angiosperms → Compositae → Xylorhiza → Xylorhiza frutescens (S. Watson) Greene
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Xylorhiza frutescens (S. Watson) Greene | Xylorhiza frutescens (S. Watson) Greene | 6(1) | Asteracea | Watson 1977 Brittonia | |||
| Xylorhiza frutescens (S. Watson) Greene | Xylorhiza frutescens (S. Watson) Greene | 12(1) | Asteracea | Anderson et al. 1974 Amer. J. Bot. |