Source : Webster's Revised Unabridged Dictionary (1913)

Broom rape \Broom" rape`\ (Bot.)
   A genus ({Orobanche}) of parasitic plants of Europe and Asia.
   They are destitute of chlorophyll, have scales instead of
   leaves, and spiked flowers, and grow attached to the roots of
   other plants, as furze, clover, flax, wild carrot, etc. The
   name is sometimes applied to other plants related to this
   genus, as {Aphyllon uniflorum}and {A. Ludovicianum}.