Decaisnina angustata is a species of flowering plant, an epiphytic hemiparasitic plant of the family Loranthaceae[1] native to the Northern Territory,[2] northern Western Australia,[3] and northern Queensland.

[4][5][6] It was first described in 1983 as Decaisnina petiolata subsp.

angustata by Bryan Alwyn Barlow[1][7] who subsequently raised it to species status in 1993.

[1][8]