Japan Flora: Slightly smaller; petioles with yellowish brown spots, the leaf-blades ternate, the leaflets dichotomously forked and pinnately lobed, the ultimate lobes oblong, candate- acuminate, 3-20 cm. long; spathe 15-20 cm. long, glabrous, the tubular part short; spadix erect, terminated by an obtuse terete appendage; ovary usually 2-locuIar; style very short, the stigma indistinctly 2-lobed; berry at first greenish, becoming reddish purple, then deep blue at maturity. May-June.

Kyushu (s. distr., including Yakushima and Tanegashima); the tuber not edible.