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Cypripedium passerinum Richardson
in Franklin, J. Polar Sea, Bot. Append. quarto ed., 2: 762 (1823).
Synonyms :
Cypripedium passerinum var. minganense Marie-Victorin in Proc. & Trans. Roy. Soc. Canada III, 22: 168, t. 1-3 (1929).

Cribb (1997) says about var. minganense: "Examination of the type of var. minganense suggests that it represents a dwarf ecotype; it does not differ otherwise from the typical variety."

Type(s) : Canada, Richardson (Holotype: BM!, Iso.: AMES!, K!).

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