Arisaema thunbergii, commonly known as Asian jack-in-the-pulpit, is a plant species in the family Araceae. It is native to Japan, southern Korea, and Taiwan. In Japan it grows at elevations of 20–100 meters.Tropicos entry for Arisaema thunbergii The plant is poisonous as all parts contain calcium oxalate.
Subspecies Three subspecies are accepted. Arisaema thunbergii subsp. autumnale – northern and eastern Taiwan Arisaema thunbergii subsp. thunbergii – southern Korea and Japan (western Honshu, Kyushu, and Shikoku) Arisaema thunbergii subsp. urashima – southern Korea and Japan (southern Hokkaido, Honshu, northern Kyushu, and eastern Shikoku)
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