THE UTILITARIAN ASPECT OF PETREA VOLUBILIS

Petrea Volubilis aka Sndpaper Vine is a very 
 beautiful plant to watch when in bloom.
The leaves of Petrea V. are very rough on
both sides, like a sandpaper! So, naturally,
 I thought they can be used like a sandpaper,
especially when dry ( no trace marks of green).
And that is the utilitarian aspect of Petrea Volubilis!

I tried to sand an old piece of  wood with a dry leaf, and it worked.

Sandpaper Vine: the leaves are very rough, like a sandpaper!