Oxossia albicans
Oxossia albicans is a subshrub in the genus Oxossia (Passifloraceae subfamily Turneroideae). It is native to the wet tropics of eastern Brazil, specifically the Atlantic forest. It is 40 - 80 cm tall and has yellow heterostylous flowers. Previously, O. albicans was classified as Turnera, however, recent phylogenetic analyses justified its classification as Oxossia. As of 2017, O. albicans is classified as endangered. References 

Passifloraceae
Flora of Brazil