Translation:The flower is white, yellow, and pink.
I imagine a yellow star being a big ball of lava. Since flava rhymes with lava, this in turn reminds me of the star's yellowish color. Word and image association don't always have to make the most sense, as long as they work. In fact, they say the more ridiculous the imagery, the easier it will be to remember. You can use this for literally anything. :)