You can now also search the trade list.
At the top, select a member (or leave it as "Everyone") and under that, type something you want to search for. It will then only show the plants that contain your search query in the "Plant" field.
For example, choose "bxncbx" from the pulldown and enter "daylily" in the form field, and you can then see the 5 daylily offered by that one member.
Or choose "Everyone" from the pulldown, enter "daylily" and you get all of the daylilies in the swap.