Typhonium angustilobum is a species of plant in the Araceae family that is native to Australia and New Guinea.

The species is a deciduous geophytic, perennial herb, which resprouts annually from a corm 4–10 cm in diameter.

The narrowly trilobate leaves are borne on stalks up to 35 cm long.

The flower is enclosed in a 22 cm long spathe, greenish on the outside, brownish-purple on the inside.

[1] The species is known from northern Queensland as well as the Western Province of Papua New Guinea, where it grows in open woodland.