English: East Asian orixa; Japanese orixa.
Region: Japan, South Korea.
Habitat: forested, sunny slopes; elevations from 500 to 1300 m.
Content: alkaloids effective against Plasmodium falciparum.
BotanyDeciduous shrub; 3 metres tall; equal spread.
Leaves: leaf pattern, 180 degrees, 90 degrees, 180 degrees, and 270 degrees, then repeats.