Umbilicus oppositifolius
（重定向自Chiastophyllum）
Umbilicus oppositifolius (common names lamb's-tail and gold drop) is a succulent, perennial flowering plant, a species in the genus Umbilicus of the family Crassulaceae. It is endemic to shady mountain areas in the Caucasus.
It is widely listed under its synonym Chiastophyllum oppositifolium.