There are a few species from Padang, Sumatra that have recently become available in cultivation.  This listing is for the one that looks like this 🙃 .  It’s most distinctive feature is the leaf shape, which is anglar and where the primary leaf veins reach the outder edge, there is a point.  As it grows, the red becomes more apparent.  Petioles are also red. As far as I know, this species is undescribed.

The last photo is representative of the plants available. They are well rooted and shipped meticulously in their pots.