Native cultivars, sometimes called “nativars,” are patented plants. Once the plant breeder is satisfied—with the double flower, the altered color, or whatever characteristic is being cultivated for—the plant is named, patented and marketed, then genetically identical plants are mass produced for sale. These plants will have a brand name in single quotation marks after the genus and species names, e.g. Echinacea purpurea ‘Double Decker’ (pictured, with its freakish second set of ray flowers sticking out of the cones).
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So, what’s the problem with all these cultivars? Read the full article here:
Cultivar: Echinacea purpurea “Double Decker”