These dedicated fishermen are camellia growers. It is not uncommon in certain families of plants, especially cultivars, to have different physical characteristics on the same plant. Often, these differences are slight and go unnoticed. However, when the flower is involved, these differences become quite noticeable. On camellias, these mutant flowers are known as sports.
Cultivars are more susceptible to sporting than native species for a couple of reasons.
Also, in the natural world sports tend to have a low survival rate. In the garden, though, they are prized and maintained through various means of vegetative propagation. The camellia originated in subtropical China. Camellia sinensis is the common tea plant. It was the beverage, not the flower, that brought camellia to America.