Cypripède oeuf-de-passereau vs Japanese Ladyslipper

Cypripedium passerinum compared with Cypripedium japonicum

Key Differences

• Cypripède oeuf-de-passereau is Vulnerable while Japanese Ladyslipper is Endangered.

Taxonomic Classification

Rank	Cypripède oeuf-de-passereau	Japanese Ladyslipper
Kingdom same	Plantae (plante)	Plantae (plante)
Phylum same	Magnoliophyta (Flowering Plants)	Magnoliophyta (Flowering Plants)
Class same	Liliopsida (Monocots)	Liliopsida (Monocots)
Order same	Asparagales (Asparagales)	Asparagales (Asparagales)
Family same	Orchidaceae	Orchidaceae
Genus same	Cypripedium	Cypripedium
Species	Cypripedium passerinum	Cypripedium japonicum

Evolutionary Relationship

Cypripède oeuf-de-passereau and Japanese Ladyslipper share a common ancestor at the Genus level: Cypripedium.

Conservation Status

Cypripède oeuf-de-passereau

VU — Vulnerable

Japanese Ladyslipper

EN — Endangered

Physical Characteristics

Attribute	Cypripède oeuf-de-passereau	Japanese Ladyslipper
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Cypripède oeuf-de-passereau

Habitat

Typically found in grasslands, wetlands, forests, and cultivated landscapes.

Range

Distributed across Canada and Norway. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Japanese Ladyslipper

Habitat

Typically found in grasslands, wetlands, forests, and cultivated landscapes.