Goldenrod (color) Goldenrod (color) Goldenrod is a color that resembles the goldenrod plant. A Crayola crayon with this name and color, although a lighter version, was created in 1958. Displayed at right is the web color goldenrod. The color "goldenrod" is a representation of the color of some of the deeper gold colored goldenrod flowers. The first known recorded use of "goldenrod" as a color name in English was in 1915. The web color light goldenrod yellow is displayed at right. The web color pale goldenrod is displayed at right. The web color dark goldenrod is a color that resembles the color
Plant physiology Rather, a short day plant requires a minimal length of uninterrupted darkness in each 24-hour period (a short daylength) before floral development can begin. It has been determined experimentally that a short day plant (long night) does not flower if a flash of phytochrome activating light is used on the plant during the night. Plants make use of the phytochrome system to sense day length or photoperiod. This fact is utilized by florists and greenhouse gardeners to control and even induce flowering out of season, such as the "Poinsettia". Paradoxically, the subdiscipline of environmental physiology is on the one hand