Name "Renanthera" formed from Latin "renes" for kidney and Greece "anther" for medicine combined together that means the shape looks like kidney. 

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      There are 20 types of color like light yellow, green, orange some with spots.  Red is the common one, despite its small flower but it's numerous on the stems. Thus, it looks like fireworks while blooming.   

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      Bangkok beauty is the popular variety for its quality and eye-catching red color in the past years.  More and more customers are fond of it.