Source : Webster's Revised Unabridged Dictionary (1913)

Pipsissewa \Pip*sis"se*wa\, n. [From American Indian.] (Bot.)
   A low evergreen plant ({Chimaphila umbellata}), with narrow,
   wedge-lanceolate leaves, and an umbel of pretty nodding
   fragrant blossoms. It has been used in nephritic diseases.
   Called also {prince's pine}.

Source : WordNet®

Chimaphila umbellata
     n : Eurasian herb with white or pinkish flowers in a terminal
         corymb [syn: {love-in-winter}, {western prince's pine}, {Chimaphila
         corymbosa}]