Crossword clues for Rainbow flower. 4 letters:IRISRainbow flower.IRISRainbow goddess, or a flowerIRISFlower whose name means "rainbow"IRISFlower from the Greek for "rainbow"IRISFlower whose name is Greek for "rainbow"IRISFlower whose name comes from the Greek for "rainbow"IRISESFlowers named for a rainbow goddessIRISESFlowers named for the Greek rainbow goddess