Here's a close-up picture, or this is actually a regular picture of a water hyacinth, and if you had really, really good vision, with your naked eye, you'd see it about that well.
大写しになっているのは 実は普通に撮ったホテイアオイの写真です 皆さんの目が 本当に良ければ 肉眼でこんなふうに見えますよ