Definitions for orobanchaceae

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Princeton's WordNet

  1. Orobanchaceae, family Orobanchaceae, broomrape family(noun)

    brown or yellow leafless herbs; sometimes placed in the order Scrophulariales

Freebase

  1. Orobanchaceae

    Orobanchaceae, the broomrape family, is a family of flowering 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. This is a cosmopolitan family, found mainly in temperate Eurasia, North America, South America, parts of Australia, New Zealand, and tropical Africa. The Orobanchaceae are annual herbs or perennial herbs or shrubs, and all are parasitic on the roots of other plants—either holoparasitic or hemiparasitic. The holoparasitic species lack chlorophyll and therefore cannot perform photosynthesis. They may be yellowish, brownish, purplish, or white. Their alternate leaves have been reduced to somewhat fleshy, sessile scales. The hemiparasitic species are capable of photosynthesis, and may be either facultative or obligate parasites. Parasitic plants are attached to their host by means of haustoria, which transfer nutrients from the host to the parasite. Only the hemiparasitic species possess an additional extensive root system. In most holoparasitic species there is a swollen mass of short, bulky roots or one big swollen haustorial organ, which may be simple or composite.

U.S. National Library of Medicine

  1. Orobanchaceae

    The broom-rape plant family of the order Scrophulariales, subclass Asteridae, class Magnoliopsida.

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