Department of Biology
ESC 350
200 University Ave. W
Waterloo, Ontario, Canada N2L 3G1
Phone: (519) 888-4567 ext. 32569
Fax: (519) 746-0614
Blue-stem or Woodland or Wreath Goldenrod, verge d’or bleuâtre
Solidago caesia L. is a common woodland goldenrod in eastern North America.
The stems are usually bluish to purple, glaucous and arching and the heads occur in small clustered subtended by large upper stem leaves (Semple & Cook 2006 FNA). The species is diploid 2n=18 throughout its range (Cook & Semple 2008).
Two varieties were recognised in FNA based on work by R.E. Cook (Cook & Semple 2008; Cook et al. 2009).
Cook, R.E. and J.C. Semple. 2008. The cytogeography of Solidago subsect. Glomeruliflorae (Asteraceae: Astereae). Botany 86: 1488-1496.
Last update 1 June 2023 by J.C. Semple
© 2023 J.C. Semple, including all photographs unless otherwise indicated