Ursula, you should have no problem adding them to the Tropaeolum generic entry. It's for all plants of the genus. The page may currently be taken up mostly by photos of T. majus or T. minus, but that's because they're the ones available to most of us. As long as your photos are of plants of the Tropaeolum genus, they belong on that page. I can move the other photos on that page to more appropriate entries if necessary. I think they all look like T. majus. Do you agree or do you see some that aren't?
Nasturtium (Tropaeolum)