玫瑰 specifically refers to the rose flower. In everyday Chinese, 玫瑰花 (méiguihuā) is also commonly used. Red roses (红玫瑰) are strongly associated with romantic love, especially on Valentine's Day (情人节).
culture
In Chinese flower symbolism, 玫瑰 represents love and passion. The number of roses given carries meaning: one rose means 'you are the only one,' nine roses mean 'everlasting love,' and ninety-nine roses mean 'forever together.'