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CCDB → Angiosperms → Compositae → Achillea → Achillea borealis Bong.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| ! | Achillea borealis Bong. | Achillea millefolium L. | 18, 27(1, 1) | Asteracea | Tyrl 1975 Brittonia | ||
| Achillea borealis Bong. | Achillea millefolium L. | 54 | IPCN online | Love, A. & D. Love. 1982. In: IOPB chromosome number reports LXXVI. Taxon 31: 583–587. | |||
| Achillea borealis Bong. | Achillea millefolium L. | 54 | IPCN online | Dabrowska, J. 1992. Chromosome number and DNA content in taxa of Achillea L. in relation to the distribution of the genus. Prace Bot. Univ. Wroclawsk. 49: 1–83. | |||
| ! | Achillea borealis Bong. | Achillea millefolium L. | 54 | Fedorov, 1974 | Clausen J. et al. 1939, 1940b, 1942 | ||
| ! | Achillea borealis Bong. | Achillea millefolium L. | 54 | Fedorov, 1974 | Ehrendorfer 195<!, 1959b | ||
| ! | Achillea borealis Bong. | Achillea millefolium L. | 54 | Fedorov, 1974 | Mulligan, Bassett 1959 | ||
| ! | Achillea borealis Bong. | Achillea millefolium L. | 54 | Fedorov, 1974 | Love A., LOve D. | ||
| ! | Achillea borealis Bong. | Achillea millefolium L. | 54 | Fedorov, 1974 | C. n. I. 1964) | ||
| ! | Achillea borealis Bong. | Achillea millefolium L. | 54 | Fedorov, 1974 | Love A., Ritchie 1961i | ||
| ! | Achillea borealis Bong. | Achillea millefolium L. | 54, 72 | Fedorov, 1974 | Lawrence 1947 | ||
| ! | Achillea borealis Bong. | Achillea millefolium L. | 54 | Darlington, 1955 | |||
| ! | Achillea borealis Bong. | Achillea millefolium L. | 54 | C-values database | Dabrowska J. 1992. Chromosome number and DNA content in taxa of Achillea L. in relation to the distribution of the genus. Prace Botaniczne 49: 1-84. | ||
| ! | Achillea borealis Bong. | Achillea millefolium L. | 27 | Cave1959 | Ehrendorfer 1959b |