Arisaema sikokianum, the Japanese Jack-in-the-pulpit, is a herbaceous perennial plant.

An unusual woodland plant noted for its unmistakable smoky-purple base, snow-white cup and large hood with purple, green and white stripes.

Found only in moist, shaded areas on the Island of Shikoku in Japan,[1] it is closely related to Arisaema triphyllum, which is common to the eastern United States.

[2] In home gardens, it is a springtime planting and is often placed with shade-loving hostas and bleeding hearts.

[3] The plant is known to have existed and been admired in eighteenth century Japan.