Madagascar Periwinkle
It is native and endemic to Madagascar , but grown elsewhere as an ornamental and medicinal plant, a source of the drugs vincristine and vinblastine used to treat cancer .
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#flower#傍晚#plant#impatiens#花_植物#botany#evening#periwinkle#busy_lizzie#wood_sorrel_family#petal#nature#植物#leaf#flowering_plant#叶子#花#自然
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