bwv998 said:Yes, I know Toxicodendron radicans is not wrong. 
However, what I'm asking is why does the system do this? 
It does this because you entered the binomial botanical name in your proposal, so the system naturally assumed that the first was the genus and the second was the species. Am I misunderstanding your question? I see nothing wrong with separating the genus from the species.
Your proposal also contained another error. The common name is Sundew, not Drosera magnifica.
