There is Japanese Morning Glory.
Pink and White Asagao Morning Glory.
https://www.flowermeaning.com/morning-glory-flower-meaning/
Excerpt
Symbolism of the Morning Glory
The morning glory has a number of meanings. The Chinese folklore of this flower symbolizes that lovers may only meet on one special day out of the year. The story behind this is that two young people fell deeply in love neglecting all of their responsibilities. As more and more chores were ignored the heavens started to rumble with the gods dissatisfaction. So, they decreed that the lovers could meet just one day out of the year. Morning glories also mean unrequited love. They can be found in Victorian literature and on victorian gravestones to signify a love that never ended. Conversely, it can mean that a potential love was never reciprocated. Christians believed that the morning glory related directly to the finite nature of life on earth, each single flower representing one life and life being represented by the daylight hours of the sun, withering and finally dying by nightfall.
Morning Glory Flower Color Meanings
Morning glory flowers can be found in blue, purple, red, white and yellow and variations of these colors. Some can be eight inches across; these are actually the familiar fragrant moon flowers found in many gardens. The color meaning of WHITE SYMBOLIZES PURITY in the morning glory while RED SYMBOLIZES A STRONG HEART.