i totally understand, and that's why i mentioned the fact that this particular plant is listed on sellers sites with diff names and especially since these same names were listed by croton society too.
so there is a processing overhead on 'extra plant names'? in other words, when extra plant name is added, do you allow searches on it? then it makes sense to restrict the entry, of course.
so, do you want to add those 2 names to C. variegatum var variegatum or you don't? if you don't i can just post a comment and then the info will be there, but it will not interfere with processing in any way.
i think there is a difference between 'sold as'-name and synonym. many plants are sold under incorrect names. i've come across a phrase 'hort.name' too - i guess it indicates some sort of accepted by all trade 'historically incorrect' name, or smth like that. but these are the names people have to deal with when they buy plants.
the bottom line is people need to cross-ref the names of plants that they get at the nursery with botanical name to get better cultural info, for example. and there's no way to do it, unless you add the names some place.