Plicosepalus acaciae, the acacia strap flower, is a species of hemiparasitic flowering plant in the family Loranthaceae. It is native to northeastern Africa, the Levant, and the Arabian Peninsula. As its common and scientific names suggest, it parasitizes acacias; Vachellia tortilis subsp. raddiana and V. t. subsp. tortilis. It seeds are dispersed by the white-spectacled bulbul.