Deppea splendens (Golden Fuchsia)
Deppea splendens (Golden Fuchsia) flower with yellow petals and reddish sepals near large green leaves.
Botanical names: Deppea splendens, Csapodya splendens
Common name: Golden Fuchsia
Family: Rubiaceae
Origin: Mexico
USDA Plant Hardiness Zone Map
The species is now believed to be extinct in the wild. This is one of the rarest plants in cultivation today. It comes from cool cloudforests, so it prefers moderate temperatures, cool nights, and some protection from strong afternoon sun.
Link to this plant:
https://toptropicals.com/catalog/uid/deppea_splendens.htm