Compositae? Think the classic annual sunflower. Helianthus is but one of an estimated 22,000 species in some 1,600 genera. Indeed, this makes the Daisy Family the second largest after Orchids.
Some of the very best for the flower garden originated in North America. The original species are increasingly hard to find in retail outlets since new selections are eagerly sought--and promoted--by an industry ever interested in increasing its profit margin. Species can not be patented but a new hybrids can, are and for some years thereafter yield a constant flow of royalties.