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
Amaranth (color) Amaranth (color) Amaranth is a reddish-rose color that is a representation of the color of the flower of the amaranth plant. The color shown is the color of the red amaranth flower (the color normally considered amaranth), but there are other varieties of amaranth that have other colors of amaranth flowers; these colors are also shown below. The color amaranth is displayed at right. This color is also called "amaranth red" to distinguish it from the varying colors of other varieties of the amaranth flower. The color "amaranth" is similar to printer's magenta (pigment magenta) (but redder). It is the