selected vouchers: WTU
Notes: Taxonomy follows FNA, where all members of the genus are considered native in Washington (Bentacourt et al. 1984). Formerly treated as introductions from Europe (Maihle & Blackwell 1978).
» Betancourt, J. L., A. Long, D. J. Donahue, A. J. T. Jull, and T. H. Zabel. 1984. Pre-Columbian age for North American Corispermum L. (Chenopodiaceae) confirmed by accelerator radiocarbon dating. Nature 311: 653-655.
» Maihle, N. J., and W. H. Blackwell. 1978. A synopsis of North American Corispermum (Chenopodiaceae). Sida 7: 382-391.