...Even if the wardii parent was an album, you would have green warts or bumps on the petals. Smooth petals points toward a possible wrong tag.
I think the followup to Rudolf's comments would be, what parents would lead to such an absence of warts, etc on the petals?
Many Maudiae type crosses have lots of variation in such traits. When you consider that the primary albinistic species that would be involved in this cross have warts, bumps, etc you can easily find that this is simply a matter of hybrid variation.
I don't know if the tag is correct, but it certainly could be.