In fact, since I saw Nepenthes inermis and Nepenthes dubia in the late eighties for the first time in habitat, these two were my favourite Nepenthes species. While the pitcher of N. inermis is even more bizarre than the one of N. dubia, the whole plant of N. dubia looks more gracile and nicer for my taste.
Nepenthes dubia - seedling pitchers It's well known, that Nepenthes dubia has very interestingly shaped pitchers. However, this not only holds true for the adult plants. Seedlings already have pitchers that can easily been told apart...