Solidago bicolor

Silverrod, White Goldenrod

Solidago bicolor L. is an eastern North American species that has white ray florets. The species is similar to S. hispida var. hispida, which has been treated as S. bicolor var. concolor. I have observed the two species growing intermixed at several location but have never encountered a hybrid between the two species.

Solidago bicolor range JCS draft Semple (2016) documented a S. bicolor × S. brendae hybrid from Cape Breton Nova Scotia. The species is diploid throughout its range (Semple 2022)

Solidago bicolor habit 2919 ON

Solidago bicolor, habit, Semple 2919, eastern Ontario

Solidago bicolor stem

Solidago bicolor, stem

Solidago bicolor, inflorescences

Solidago bicolor heads

Solidago bicolor, heads

Solidago bicolor range JCS draft

Solidago bicolor, range JCS draft

Semple, J.C. 2016. Documenting a Solidago bicolor × S. brendiae hybrid (Asteraceae: Astereae) from Nova Scotia. Phytoneuron 2016-23. 1–10.

Semple, J.C. and R.E. Cook. 2022. The cytogeography of Solidago sect. Erectae, sect. Villosicarpae, sect. Squarrosae, and sect. Brintonia (Asteraceae: Astereae). Taxonomy 2: 261–278.

Last update 31 May 2023 by J.C. Semple