Tall bugbane (Cimicifuga elata) COSEWIC assessment and status report: chapter 4
Distribution
Global Range
Cimicifuga elata occurs in western Oregon and Washington, and south-western British Columbia (Fig. 2).
Figure 1. Illustration of Cimicifuga elata Nutt. Line drawing by Jane Lee Ling in Douglas et al. (1998).
Figure 2. Distribution of Cimicifuga elatain British Columbia.
Canadian Range
In British Columbia, C. elata is only found sporadically in the Chilliwack River valley. Localities range from British Columbia to as far south as approximately forty-two degress and five minutes North in latitude, near Ashland in southwestern Oregon. Cimicifuga elata occurs entirely west of the Coast-Cascade Mountain range in British Columbia and Washington, but within that mountain range in southern Oregon.