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CCDB → Angiosperms → Rosaceae → Spiraea → Spiraea douglasii Hook.

3 chromosome counts in Spiraea douglasii Hook.:

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Median Minimum Max Distribution

		Name	Accepted Name	Gametophytic(n)	Sporophytic(2n)	Data Source	reference
!		Spiraea douglasii Hook.	Spiraea douglasii Hook.		36	flora of NW Europe	http://wbd.etibioinformatics.nl/bis/flora.php?selected=beschrijving&menuentry=soorten&id=2586
		Spiraea douglasii Hook.	Spiraea douglasii Hook.	18		IPCN online	Chambers, K. L., D. Green, S. Potampa & L. McMahan. 1998. IOPB chromosome data 13. Newslett. Int. Organ. Pl. Biosyst. (Oslo) 29: 18–22.
!		Spiraea douglasii Hook.	Spiraea douglasii Hook.		36	Darlington, 1955