Danny: There are hundreds of different varieties of Morning Glories. One Japanese variety, Shidare-asagao, is particularly interesting for scientists because it has lost its balance. Plants, like people, have a sense of balance that allows them to know up from down. Just as we know when we're upside down, or just lying down, a plant also knows when its not vertical. Plants shift their growth according to gravity. That's why plant shoots always grow up, and roots always grow down (you can test this at home by placing a plant and its pot on its side). Shidare-asagao though has lost its sense of gravity. Rather than growing up, its shoots fall down. This makes for a great hanging plant.