Orobanche uniflora, commonly known as one-flowered broomrape, 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.
- "Profile for Orobanche uniflora (oneflowered broomrape)". USDA. Retrieved September 8, 2007.
- One-flowered Cancer Root (Orobanche uniflora)
- Newcomb, Lawrence: Newcomb's Wildflower Guide. Little Brown. Boston. 1977, ISBN 978-0316604420.
- Media related to Orobanche uniflora at Wikimedia Commons
- E-Flora BC
- Jepson Manual Treatment
- USDA Plants Profile
- Photo gallery
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