Orobanchaceae, the broomrapes, is a family of parasitic plants of the order Lamiales, with about 90 genera and more than 2000 species. Many of these genera were formerly included in the family Scrophulariaceae sensu lato. Together they are a monophyletic group, forming a distinct family. The Orobanchaceae are annual herbs or perennial herbs or shrubs, and all (except Lindenbergia and Rehmannia) are parasitic on the roots of other plants—either holoparasitic or hemiparasitic (fully or partly parasitic). The holoparasitic species lack chlorophyll and therefore cannot perform photosynthesis.