genus Spiraea

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Noun1.genus Spiraea - a dicotyledonous genus of the family Rosaceae
rosid dicot genus - a genus of dicotyledonous plants
family Rosaceae, Rosaceae, rose family - a large family of dicotyledonous plants of order Rosales; have alternate leaves and five-petaled flowers with numerous stamens
spiraea, spirea - any rosaceous plant of the genus Spiraea; has sprays of small white or pink flowers