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
International Colour Authority the earliest colour trend prediction available to the furniture design and textile industries. Nowadays the ICA is one of the leading colour forecasters for the industry, along with the Color Marketing Group. Their products are ""high-quality forecast publications containing an abundance of accurate information on market trends"", which ranks them among ""the favourite publications of many professionals"", according to an article published by the International Trade Centre. Colours in the ICA colour guides are referenced using the Pantone standard, the Natural Color System (NCS) standard, or both. ICA has now launched an online service through which subscribers can download the