Following mnemonics the other way around - via leaves, my best guess is that leaves remind blades, through which I came to Cladium Mariscus (German "Schneide", Russian "меч-трава" (= sword-grass)).
It is known to be used in treating wounds, skin diseases and menstrual disfunctions. Flowers look more or less like those in f17r, only in reality they are not purple.
It is known to be used in treating wounds, skin diseases and menstrual disfunctions. Flowers look more or less like those in f17r, only in reality they are not purple.