This is probably your best source of information. Both are discussed in the article you can read at this link:
Hope it helps!
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This is a discussion on Paph violascens and papuanum within the Genus Specific forums, part of the Orchid Culture category; ...
The following question is not supposed to be easy
I would like to know precisely the difference between paph violascens and paph papuanum (habitat, foliage, flowers,…).
Any information reply will be welcome.
Indeed, I have now a paph papuanum (or violascens) in bud. I already saw its flower on photograph. I obtained a division of this plant, therefore I would not be disappointed by the flower.
On the other hand, I have many difficulties to differentiate both.
Thank you in advance for all the help you will be able to bring to me.
Obviously, I will post also a photograph on this forum when the flower is open.
There are a few differences between Paph. violascens and Paph. papuanum vegetation and growth.
Paph. violascens have silver leaves with dark green mottling. The leaves are held stiffly and upright, slightly obtuse, with a leaf span on a mature plant about 15cm-17cm. This species tends to grow quite fast.
Paph. papuanum is a similar species, which has light green leaves with dark green mottling. Leaves are droopy and not stiff, narrow, with a somewhat shorter leaf span then Paph. violascens.
Please do post pictures!
Ok, so maybe the Koopowitz article is the second best source of information...
Thank you Julie and Mahon for these additional information. Whith you help (here and from other forum) i can see better the differences