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CCDB → Angiosperms → Compositae → Helianthus → Helianthus angustifolius L.

5 chromosome counts in Helianthus angustifolius L.:

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		Name	Accepted Name	Gametophytic(n)	Sporophytic(2n)	Data Source	reference
		Helianthus angustifolius L.	Helianthus angustifolius L.	17(1)		Asteracea	Sossey-Alaoui, K. et al. 1998 Theor. Appl. Genet.
		Helianthus angustifolius L.	Helianthus angustifolius L.	17		IPCN65	Smith 1965a
		Helianthus angustifolius L.	Helianthus angustifolius L.	17	34	IPCN online	Kulshreshtha, V. B. & P. K. GUPTA. 1979. Cytogenetic studies in the genus Helianthus L. Cytologia 44: 325–334.
		Helianthus angustifolius L.	Helianthus angustifolius L.	17		IPCN66	S. B. Jones 1966
!		Helianthus angustifolius L.	Helianthus angustifolius L.		34	C-values database	Sims LE, Price HJ. 1985. Nuclear DNA content variation in Helianthus (Asteraceae). American Journal of Botany 72: 1213-1219.