Typhonium alismifolium is a species of plant in the Araceae family that is endemic to Australia.

The species is a deciduous, geophytic, perennial herb which resprouts annually from a corm about 5 cm in diameter.

The oval to trilobed leaves are borne on 10–70 cm long stalks.

The flower is enclosed in a 25 cm long spathe, green on the outside, deep brownish-purple on the inside.

[1] The species is known from the Northern Territory and northeastern Queensland, where it grows in dry rainforest and deciduous vine forest.