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CCDB → Angiosperms → Compositae → Helianthus → Helianthus petiolaris Nutt.

17 chromosome counts in Helianthus petiolaris Nutt.:

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		Name	Accepted Name	Gametophytic(n)	Sporophytic(2n)	Data Source	reference
		Helianthus petiolaris subsp. petiolaris	Helianthus petiolaris Nutt.	17(55)		Asteracea	Rieseberg et al. 1990 Evolution
!		Helianthus petiolaris subsp. petiolaris	Helianthus petiolaris Nutt.	2IV+13II(2)		Asteracea	Heiser 1961 Evolution
!		Helianthus petiolaris subsp. petiolaris	Helianthus petiolaris Nutt.	17II(2)		Asteracea	Heiser 1961 Evolution
!		Helianthus petiolaris subsp. petiolaris	Helianthus petiolaris Nutt.	1VI+14II, 1IV+15II, 17II(2)		Asteracea	Heiser 1961 Evolution
!		Helianthus petiolaris subsp. petiolaris	Helianthus petiolaris Nutt.	7-15II+ rings or chain(several)		Asteracea	Heiser 1961 Evolution
		Helianthus petiolaris Nutt.	Helianthus petiolaris Nutt.	17(1)		Asteracea	Sossey-Alaoui, K. et al. 1998 Theor. Appl. Genet.
!		Helianthus petiolaris subsp. petiolaris	Helianthus petiolaris Nutt.	1IV+17II(2)		Asteracea	Heiser 1961 Evolution
!		Helianthus petiolaris subsp. petiolaris	Helianthus petiolaris Nutt.	17II(2)		Asteracea	Heiser 1961 Evolution
!		Helianthus petiolaris subsp. petiolaris	Helianthus petiolaris Nutt.	1IV+15II(2)		Asteracea	Heiser 1961 Evolution
!		Helianthus petiolaris subsp. petiolaris	Helianthus petiolaris Nutt.	2IV+13, 1IV+17II(2)		Asteracea	Heiser 1961 Evolution
!		Helianthus petiolaris subsp. petiolaris	Helianthus petiolaris Nutt.	14-10II+Chain(2)		Asteracea	Heiser 1961 Evolution
		Helianthus petiolaris Nutt.	Helianthus petiolaris Nutt.		34	IPCN online	Ferreira, V. 1985. Viabilidad y citogenetica de los hibridos entre tres especies de Helianthus. Mendeliana 7: 13–30.
		Helianthus petiolaris Nutt.	Helianthus petiolaris Nutt.	17II, 13II+2IV		IPCN online	Ferreira, V. 1980. Hibridacion e introgresion entre Helianthus annuus L. y Helianthus petiolaris Nutt. Mendeliana 4: 81–93.
		Helianthus petiolaris subsp. petiolaris	Helianthus petiolaris Nutt.	17		IPCN online	Chandler, J. M., C. C. Jan & B. H. Beard. 1986. Chromosomal differentiation among the annual Helianthus species. Syst. Bot. 11: 354–371.
!		Helianthus petiolaris Nutt.	Helianthus petiolaris Nutt.		34	eFlora
		Helianthus petiolaris subsp. petiolaris	Helianthus petiolaris Nutt.		34	eFlora
!		Helianthus petiolaris Nutt.	Helianthus petiolaris Nutt.		34	Darlington, 1955