1. (

• spirea ,
• spiraea ,
• Astilbe_japonica

) a Japanese shrub that resembles members of the genus Spiraea; widely cultivated in many varieties for its dense panicles of flowers in many colors; often forced by florists for Easter blooming ;

2. (

• spirea ,
• spiraea ,

) any rosaceous plant of the genus Spiraea; has sprays of small white or pink flowers ;