If you mean the search results list for moving an image, you can ask
@dave about that. I don't know how much programming that would entail.
The easiest way that doesn't involve programming is to type echinocereus into the database search box.
http://garden.org/plants/searc...
Then click on "View all plants in the genus Echinocereus." That will put all of the entries in alphabetical order, with the generic entry at the top of the list:
http://garden.org/plants/brows...