venus slipper orchid blooms in may - june. cypripedium calceolus

angiosperm angiosperms asia asian blooms book calceolus cypripedium east eastern endangered flora flower flowers forest franchetii green herbaceous june kukushkin largeflowered macranthos may monocot monocotyledon monocotyledons north orchid orchidaceae paint perennial pink plant plants protected purple rare red russia siberia slipper south spotted vegetation venus wild