Umbilicus oppositifolius
（重定向自Chiastophyllum）
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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.