Begonia sp. Spock

No, not a cultivar..but I have zero information on this other than it’s a species and not a hybrid. Likely occurs in Indonesia. Abaxial leaf surfaces are red and the leaves are dramatic, and sometimes shaped unusually (second pic). I should be better about giving plants accession numbers, but, names are alot easier for me to remember so I’m giving them names. These plants are seed grown. If anyone has any idea what this might be, please reach out. Haven’t seen this one offered elsewhere in the US. The last photo is representative of the plants available. They are well rooted and shipped meticulously in their pots.