Hi all, This is a plant I purchased as Porpax sp. from Northern Thailand. Haven’t really been able to ID....ustulata and lanii may be possibilities. The blooms do not open any wider than what is in the photos. I have had this plant for 3 years, no blooms the first year, 2 last year and now 6. I grow it cool and moderately dry in the Winter (although not a complete dry rest). It is watered nearly every sunny day May - October.