Orobanche uniflora is a flowering plant in the Orobanchaceae family. Also called naked broomrape, one flowered broomrape, or cancer root, O. uniflora is a parasitic plant.
Synonymps:Aphyllon uniflorum, Orobanche uniflora var. typica, Orobanche uniflora var. terrae-novae, Orobanche uniflora var. sedii, Orobanche uniflora var. purpurea, Orobanche uniflora var. occidentalis, Orobanche terrae-novae, Orobanche sedii, Orobanche purpurea, Orobanche porphyrantha, Thalesia uniflora, Orobanche uniflora var. minuta, Orobanche uniflora ssp. occidentalis, Orobanche uniflora var. sedi
Kingdom Plantae – Plants Subkingdom -Tracheobionta – Vascular plants Superdivision - Spermatophyta – Seed plants Division - Magnoliophyta – Flowering plants Class - Magnoliopsida – Dicotyledons Subclass - Asteridae Order - Scrophulariales Family - Orobanchaceae – Broom-rape family Genus - Orobanche – broomrape Species - O. uniflora
O. uniflora is a short, annual, parasitic herb that is glandular hairy. It is somewhat fleshy. The stems of this plant are short (1 - 5 cm) compared to the pedicles, which are 3 - 10 cm long. The herb has no leaves or bracts. Flowers 1 - 3, on long pedicles. Calyx 5 -12 mm, with brown to purple corolla that measures 15 - 35 mm. Flower two lipped, with five finely fringed lobes.
Present in every contiguous state in the United States, plus Alaska and much of Canada.
Moist open sites, or open woods. Low to middle elevations.