Orobanche uniflora, commonly known as oneflowered broomrape, one-flowered cancer root, ghost pipe or naked broomrape, is an annual parasitic herb. It is native to much of North America, where it is a parasitic plant, tapping nutrients from many other species of plants, including those in the Asteraceae and Saxifragaceae families and in the genus Sedum. It grows to a height of five centimeters, and has short (up to 3 centimeter) scaly leaves. The flowers grow singly on 5-15 centimetres (2. 0-5. 9 in) stalks and may be up to 3. 5 centimetres (1. 4 in) long. The corolla is violet to yellow-brown, two-lipped, finely fringed with five similar lobes.