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CCDB → Angiosperms → Compositae → Symphyotrichum → Aster borealis (Torr. & A. Gray) Prov.

8 chromosome counts in Aster borealis (Torr. & A. Gray) Prov.:

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		Name	Accepted Name	Gametophytic(n)	Sporophytic(2n)	Data Source	reference
		Aster borealis (Torr. & A. Gray) Prov.	Symphyotrichum boreale (Torr. & A. Gray) Á. Löve & D. Löve		16, 32	IPCN online	Chmielewski, J. G. 1986. Documented plant chromosome numbers 1986. 1. Miscellaneous counts in Aster (Compositae). Sida 11: 483–485.
		Aster borealis (Torr. & A. Gray) Prov.	Symphyotrichum boreale (Torr. & A. Gray) Á. Löve & D. Löve		32	IPCN online	Semple, J. C. & J. G. Chmielewski. 1987. Chromosome number determinations in fam. Compositae, tribe Astereae. II. Additional counts. Rhodora 89: 319–325.
		Aster borealis (Torr. & A. Gray) Prov.	Symphyotrichum boreale (Torr. & A. Gray) Á. Löve & D. Löve		16	IPCN online	Semple, J. C. 1983. Range expansion of Heterotheca camporum (Compositae: Asteraceae) in the southeastern United States. Brittonia 35(2): 140–146.
		Aster borealis (Torr. & A. Gray) Prov.	Symphyotrichum boreale (Torr. & A. Gray) Á. Löve & D. Löve		16, 32	IPCN online	Semple, J. C., J. G. Chmielewski & M. E. Lane. 1989. Chromosome number determinations in fam. Compositae, tribe Astereae. III. Additional counts and comments on generic limits and ancestral base numbers. Rhodora 91: 296–314.
		Aster borealis (Torr. & A. Gray) Prov.	Symphyotrichum boreale (Torr. & A. Gray) Á. Löve & D. Löve		64	IPCN online	Semple, J. C., J. Zhang & C. Xiang. 1993. Chromosome number determinations in fam. Compositae, tribe Astereae. V. Eastern North American taxa. Rhodora 95: 234–253.
		Aster borealis (Torr. & A. Gray) Prov.	Symphyotrichum boreale (Torr. & A. Gray) Á. Löve & D. Löve	32 II	32	IPCN online	Semple, J. C. 1981. In Chromosome number reports LXXll. Taxon 30: 703–704.
		Aster borealis (Torr. & A. Gray) Prov.	Symphyotrichum boreale (Torr. & A. Gray) Á. Löve & D. Löve		16	IPCN online	Semple, J. C. & L. Brouillet. 1980. Chromosome numbers and satellite chromosome morphology in Aster and Lasallea. Amer. J. Bot. 67(7): 1027–1039.
		Aster borealis (Torr. & A. Gray) Prov.	Symphyotrichum boreale (Torr. & A. Gray) Á. Löve & D. Löve	16 II, 24 II, 32 II	16	IPCN online	Jones, A. G. 1980. Data on chromosome numbers in Aster (Asteraceae) with comments on the status and relationships of certain North American species. Brittonia 32(2): 240–261.