It was suggested (still not yet officially confirmed) that this is likely to be the dark red form of B. hatacoa var. rubrifolia (pers. comm , 2015, Dr. Ching-I Peng).
This plant forms an upright vase-like clump of 6-7" lanceolate, fairly leathery leaves. It's leaf color is a deep glossy purple-green while the underside is tinted an intense wine red. My plant originated from within a packet of seed of a Vietnamese species (then "U636": Now confirmed as B. pulvinifera, typically from the Chinese border region of Vietnam). Out of that seed tray, about 4 of these plants grew; of them, this particular plant seemed to have the darkest leaf color.
It seems to be an easy plant for warm, humid, well-drained conditions.
These are leaf-propagated plants - currently in 3" pots.
|Int - Warm||Low - Medium|