Rhamnus taquetii, (Korean: 좀갈매나무, lit. 'little buckthorn') is a species of Rhamnus native to Jeju Island, South Korea. Growing on the slopes of Mt. Halla at elevations above 1200 m, it is a bush reaching 1 m. The anthraquinone physcion and the flavonoids kaempferol, rhamnocitrin, quercetin, and 3-O-methyl quercetin were isolated from its tissues.

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