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CCDB → Angiosperms → Compositae → Chaenactis → Chaenactis douglasii (Hook.) Hook. & Arn.

25 chromosome counts in Chaenactis douglasii (Hook.) Hook. & Arn.:

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		Name	Accepted Name	Gametophytic(n)	Sporophytic(2n)	Data Source	reference
!		Chaenactis douglasii var. montana M. E. Jones	Chaenactis douglasii (Hook.) Hook. & Arn.	6(1)		Asteracea	Raven & K. 1961 Amer. J. Bot.
		Chaenactis douglasii var. douglasii	Chaenactis douglasii (Hook.) Hook. & Arn.		12, 24, 25(2, 1, 1)	Asteracea	Mooring 1965 Brittonia
!		Chaenactis douglasii var. montana M. E. Jones	Chaenactis douglasii (Hook.) Hook. & Arn.		12(1)	Asteracea	Mooring 1965 Brittonia
		Chaenactis douglasii var. douglasii	Chaenactis douglasii (Hook.) Hook. & Arn.	12II(1)		Asteracea	Strother 1972 Amer. J. Bot.
		Chaenactis douglasii (Hook.) Hook. & Arn.	Chaenactis douglasii (Hook.) Hook. & Arn.	6II, 6II+1I, 7II, 12II, 12II+0-1f, 15I(15, 1, 1, 12, 1, 1)	11-12(1)	Asteracea	Mooring 1992 Madrono
!		Chaenactis douglasii var. glandulosa Cronquist	Chaenactis douglasii (Hook.) Hook. & Arn.		12, 13, 14, 24(1, 1, 1, 1)	Asteracea	Mooring 1965 Brittonia
!		Chaenactis douglasii var. achilleifolia (Hook. & Arn.) A. Nelson	Chaenactis douglasii (Hook.) Hook. & Arn.	6(1)	12, 24(1, 1)	Asteracea	Taylor ＆ T. 1977 Syesis. (by British Columbia Provincial Museum)
		Chaenactis douglasii var. douglasii	Chaenactis douglasii (Hook.) Hook. & Arn.	6(3)		Asteracea	Mooring 1965 Brittonia
!		Chaenactis douglasii var. achilleifolia (Hook. & Arn.) A. Nelson	Chaenactis douglasii (Hook.) Hook. & Arn.	6(1)	12, 24(1, 1)	Asteracea	Taylor & T. 1977 Syesis. (by British Columbia Provincial Museum)
!		Chaenactis douglasii (Hook.) Hook. & Arn.	Chaenactis douglasii (Hook.) Hook. & Arn.		12(1)	Asteracea	Zhao ＆ T. 1993 Sida (= J. Bot. Res. Inst. Texas)
!		Chaenactis douglasii var. montana M. E. Jones	Chaenactis douglasii (Hook.) Hook. & Arn.		12	IPCN65	Mooring 1965
!		Chaenactis douglasii var. glandulosa Cronquist	Chaenactis douglasii (Hook.) Hook. & Arn.		12, 13, 14, 24	IPCN65	Mooring 1965
		Chaenactis douglasii var. douglasii	Chaenactis douglasii (Hook.) Hook. & Arn.		12, 24, 25	IPCN65	Mooring 1965
!		Chaenactis douglasii var. achilleifolia (Hook. & Arn.) A. Gray	Chaenactis douglasii (Hook.) Hook. & Arn.		18, 24, 25, 26,27, 28, 36, c.38	IPCN65	Mooring 1965
!		Chaenactis ramosa Stockw.	Chaenactis douglasii (Hook.) Hook. & Arn.	6		IPCN65	Mooring 1965
		Chaenactis douglasii (Hook.) Hook. & Arn.	Chaenactis douglasii (Hook.) Hook. & Arn.		c.26	IPCN online	Chinnappa, C. C. & J. G. Chmielewski. 1987. Documented plant chromosome numbers 1987: 1. Miscellaneous counts from western North America. Sida 12: 409–417.
		Chaenactis douglasii (Hook.) Hook. & Arn.	Chaenactis douglasii (Hook.) Hook. & Arn.	6II, 12II+0-1+0-1I, 12II+0-1 fragm., 15II	11, 12	IPCN online	Mooring, J. S. 1992. Chromosome numbers and geographic distribution in Chaenactis douglasii (Compositae, Helenieae). Madroño 39(4): 263–270.
		Chaenactis douglasii (Hook.) Hook. & Arn.	Chaenactis douglasii (Hook.) Hook. & Arn.		12	IPCN online	Turner, B. L. & Z. Zhao. 1992. Documented chromosome numbers 1992: 2. Miscellaneous U.S.A. and Mexican species, mostly Asteraceae. Sida 15: 147–150.
		Chaenactis douglasii (Hook.) Hook. & Arn.	Chaenactis douglasii (Hook.) Hook. & Arn.		12	IPCN online	Zhao, Z. & B. L. Turner. 1993. Documented chromosome numbers 1993: 3. Miscellaneous U.S.A. and Mexican species, mostly Asteraceae. Sida 15: 649–653.
		Chaenactis douglasii (Hook.) Hook. & Arn.	Chaenactis douglasii (Hook.) Hook. & Arn.		37	IPCN online	Mooring, J. S. 1980. A cytogeographic study of Chacnactis douglasii (Compositae, Helenicae). Amer. J. Bot. 67: 1304–1319.
		Chaenactis douglasii (Hook.) Hook. & Arn.	Chaenactis douglasii (Hook.) Hook. & Arn.	6		IPCN online	Keil, D. J. & D. J. Pinkava. 1976. Chromosome counts and taxonomic notes for Compositae from the United States and Mexico. Amer. J. Bot. 63: 1393–1403.
		Chaenactis douglasii var. achilleifolia (Hook. & Arn.) A. Nelson	Chaenactis douglasii (Hook.) Hook. & Arn.	6	12,24	IPCN online	Taylor, R. L. & S. Taylor. 1977. Chromosome numbers of vascular plants of British Columbia. Syesis 10: 125–138.
!		Chaenactis douglasii var. douglasii	Chaenactis douglasii (Hook.) Hook. & Arn.	12		IPCN72	STROTHER, J.L. 1972. Chromosome studies in western North American Compositae. Amer. J. Bot. 59: 242-247.
		Chaenactis douglasii var. douglasii	Chaenactis douglasii (Hook.) Hook. & Arn.		12,24,36	eFlora
!		Chaenactis douglasii None	Chaenactis douglasii (Hook.) Hook. & Arn.	6		Cave1959	Alava 1959