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CCDB → Angiosperms → Compositae → Sonchus → Sonchus congestus Willd.

9 chromosome counts in Sonchus congestus Willd.:

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		Name	Accepted Name	Gametophytic(n)	Sporophytic(2n)	Data Source	reference
!		Sonchus macranthus Poir.	Sonchus congestus Willd.	18(1)		Asteracea	Sanders et al. 1983 Amer. J. Bot.
!		Sonchus jacquinii DC.	Sonchus congestus Willd.		18(1)	Asteracea	Larsen 1960b Kongl. Danske Videnskab. Selsk. Biol. Skr.
		Sonchus congestus Willd.	Sonchus congestus Willd.		18(1)	Asteracea	Van Loon 1974 Acta Bot. Neerl.
!		Sonchus macranthus Poir.	Sonchus congestus Willd.	18(1)		Asteracea	Sanders et al. 1983 Amer. J. Bot.
		Sonchus abbreviatus Link	Sonchus congestus Willd.		18(1)	Asteracea	Bramwell et al. 1972 Botaniska Notiser
		Sonchus abbreviatus Link	Sonchus congestus Willd.		18	IPCN72	BRAMWELL, D., C.J. HUMPHRIES, B.G. MURRAY, & S.J. OWENS. 1972. Chromosome studies in the flora of Macaronesia. Bot. Notiser 125: 139-152.
		Sonchus congestus Willd.	Sonchus congestus Willd.		18	IPCN67-71	BORGEN L. 1970. Chromosome numbers of Macaronesian flowering plants. Nytt Mag. Bot. 17: 145-161.
		Sonchus congestus Willd.	Sonchus congestus Willd.		18	IPCN73-74	VAN LOON, J. 1974. A cytological investigation of flowering plants from the Canary islands. Acta Bot. Neerl. 23: 113-124.
!		Sonchus congestus Willd.	Sonchus congestus Willd.		18	C-values database	Suda J, Kyncl T, Freiova R. 2003. Nuclear DNA amounts in Macaronesian angiosperms. Annals of Botany 92: 153-164.