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CCDB → Angiosperms → Compositae → Achillea → Achillea borealis Bong.

13 chromosome counts in Achillea borealis Bong.:

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Median Minimum Max Distribution

		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