You can add Purple Prince to the list as well. I think, in the photo of Paraguay you posted, it's a case of wrong bulb or mix up at some point by somebody. In the case of Trebbiano, I think the old stock photo of the old Garrit Zalm is still being used almost universally. In it's introduction, Trebbiano was touted as the inproved Garret Zalm. Of course, most lily hobbyists got to know about these color description discrepancies pretty fast--in a disgusting way! I'd like to know myself why these old stock photos don't get updated at the printers. On the flip side, all of the pictures in The Lily Garden's catalog (Judith Freeman) are actual photographs of what she grows and sells
And most of those listed by Faraway Flowers website are actual photographs as well.
If your looking for a Longiflorum-Asiatic that looks like what you think Trebbiano should look like, try Courier, an often overlooked lime color beauty with heavy substance. Pic. attached.
