Source : Webster's Revised Unabridged Dictionary (1913)

Jessamine \Jes"sa*mine\, n. (Bot.)
   Same as {Jasmine}.

Source : WordNet®

jessamine
     n : tall-climbing deciduous shrub with fragrant white or yellow
         or red flowers used in perfume and to flavor tea [syn: {common
         jasmine}, {true jasmine}, {Jasminum officinale}]