Sarracenia leucophylla X x willisii is absolutely not the same thing as Sarracenia leucophylla. Sarracenia x willisii can be obtained by making the following cross: (((purpurea x psittacina) x (purpurea x flava)) x purpurea))). When this resulting hybrid was crossed with leucophylla a particular raspberry colored seedling was selected out and sent to Agristarts for tissue culture. Thus was born 'Dana's Delight'. At least this is what Agristarts told me. One thing they are not sure about are the particular color forms of each species used. The breeder of this cross failed to give any background information on the parentage.
We know that some of the pink tones come from the influence of psittacina, but not sure about the other 3 species. Since purpurea was used 3 times in the making who knows if each clone used was red, green or purple or combinations there of.
It's all very confusing. But one thing we know for sure is that 'Dana's Delight' is a complex hybrid involving purpurea (3x), psittacina, flava AND leucophylla. It is invalid when sources advertise this clone as leucophylla red. It is not leucophylla red, it is 'Dana's Delight'...a hybrid which may CONTAIN leucophylla red. If sellers obtained their stock material from Agristarts then they are dealing with a hybrid. Labeling the plant as a pure species with a rare color only helps promote the plant's selling point, which is what even the most famous nurseries are doing these days. They have traded their former purist mind set for commercialism because it's too much work to do the research, the plants were sold under this name or they just don't care. Even though they know.
Still...being a purist myself I could not resist the allure of this incredibly beautiful hybrid. When well grown you can expect to see some of the most intense artwork nature has to offer.
Phil