Umbilicus oppositifolius

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.

It is a hardy, prostrate evergreen growing to 25 cm with large fleshy leaves and racemes of tiny, sulphur-yellow flowers.

It has gained the Royal Horticultural Society's Award of Garden Merit.