Yellow Lady's Slipper

Scientific Name:Cypripedium calceolus
Altenative names, synonyms, exist for this plant. See RPC Plant Details and check the refernce websites for additional information.
Synonym:Cypripedium parviflorum


NOTES: Cypripedium calceolus does not occur in North America, though the closely related Cypripedium parviflorum and C. pubescens are often still referred to as subspecies or varieties of C. calceolus.

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Tentative Identification.


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Yellow Lady's Slipper
Genus species: Cypripedium calceolus
     Synonym: Cypripedium parviflorum
Common Name: Yellow Lady's Slipper
Family Name: Orchidaceae  
Perennial herbs; leaves various, simple and parallel-veined, sometimes absent; flowers bisexual, irregular, solitary or in spikes or racemes; fruit a capsule; seeds lack endosperm, requiring contact with a symbiotic fungus for successful germination; largest family of flowering plants (rivaled only by the Aster family), with possibly over 30,000 species.
Seed Type: Angiosperm
Origin:  
Native: native to North America.
Non-native: not native to North America.
Introduced Native: native to North
America, but not Rowe Woods.
* Definitions based on the USDA
terminology
Introduced Native
Category:Wildflower
Flower Color:Yellow
Identified by:A. Swanson