Publication: Sida 18(1): 178-184, f. 5, 6 [map], 9d-f. 1998.
Origin: Native
selected vouchers: WTU
Notes: A dark purple fruited species recently described from the Okanagan Valley of British Columbia (Phipps & O\\\'Kennon 1998), and known from several counties in northeastern WA. Two varieites were proposed by Phipps and O\\\'Kennon (2002).
References: