Native to the Tanah Datar dan Lima Puluh Kota Regency in North Sumatra, this species has a provisional IUCN category of Endangered.  It is named after its collector, Robi Satria. Described by Ardi et al in 2021 to be in the section Jackia and growing to only 4 inches tall. It is a limestone growing species, similar to B. droopiae.  More information can be found here. 

The last photo is representative of the plants available. They are in 2″ pots.