Poinsettia length. The colored bracts—which are most often flaming red but can be orange, pale green, cream, pink, white, or marbled—are often mistaken for flower petals because of their groupings and colors, but are actually leaves. The colors of the bracts are created through photoperiodism, meaning that they require darkness (12 hours at a time for at least five days in a row) to change color. At the same time, the plants require abundant light during the day for the brightest color. The flowers of the poinsettia are unassuming and do not attract pollinators. They are grouped within small yellow structures
Orchid (color) Orchid (color) Orchid is a bright rich purple color that is a representation of the color of the flower of some members of the plant family orchidaceae. Various tones of "orchid" may range from grayish purple to purplish-pink to strong reddish purple. The first recorded use of "orchid" as a color name in English was in 1915. In 1987, orchid was included as one of the X11 colors. After the invention of the world wide web in 1991, these became known as the X11 web colors. The name originates from the flowers of some species of the vast orchid family