Cypripedium calceolus (Orchidaceae)-- One of many north american orchids. It has been used in the past as a sedative, thus another name for it is "American Valerian". It was over-harvested and is uncommon now, and therefore should not be picked or harvested. It smells great, and blooms in the late spring. (Photographed in WI)

Note -- Orchids provoke such fascination that many people are tempted to try to transplant them to their gardens at home. It is my opinion that this is a really BAD idea.
CLICK HERE to find out why.