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CCDB → Angiosperms → Plantaginaceae → Plantago → Plantago purshii Roem. & Schult.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Plantago purshii Roem. & Schult. | Plantago patagonica Jacq. | 20 | IPCN online | Chinnappa, C. C. & J. G. Chmielewski. 1987. Documented plant chromosome numbers 1987: 1. Miscellaneous counts from western North America. Sida 12: 409–417. | |||
| ! | Plantago purshii Roem. & Schult. | Plantago patagonica Jacq. | 20 | IPCN66 | Rahn 1966 | ||
| ! | Plantago purshii Roem. & Schult. | Plantago patagonica Jacq. | 20 | Cave1957 | Rahn |