Publication: Enum. Orchids U.S. & Canada. 22. 1924.
Origin: Native
Herbarium search: CPNWH
Notes: Taxonomy follows FNA. Varieties weakly defined,intergradient with broadly overlapping ranges, and need more study. Variety occidentalis is reported to flower 2-4 weeks earlier than var. maculata.
References:
Last updated 3/8/2021 by David Giblin.