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CCDB → Angiosperms → Compositae → Helianthus → Helianthus giganteus Cav.

2 chromosome counts in Helianthus giganteus Cav.:

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		Name	Accepted Name	Gametophytic(n)	Sporophytic(2n)	Data Source	reference
!		Helianthus giganteus Cav.	Helianthus giganteus Cav.		34	Darlington, 1955	Geisler 1931
!		Helianthus giganteus Cav.	Helianthus giganteus Cav.	17		Cave1956	Jackson