Modern chrysanthemums are much more showy than their wild relatives. The flowers occur in various forms, and can be daisy-like, decorative, pompons or buttons. This genus contains many hybrids and thousands of cultivars developed for horticultural purposes. In addition to the traditional yellow, other colours are available, such as white, purple, and red. The most important hybrid is Chrysanthemum * morifolium (syn. C. * grandiflorum), derived primarily from C. indicum but also involving other species. Chrysanthemums are broken into two basic groups, Garden Hardy and Exhibition. Garden hardy mums are perennials capable of being wintered over in the ground in most northern latitudes and can produce bundance of small blooms. Chrysanthemum plants have been shown to reduce indoor air pollution by the NASA Clean Air Study. Image is captured in 12 bit RAW and processed in Adobe RGB color space.