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KNAPWEED BROOMRAPE Orobanche elatior (Orobanchaceae) Height to 70cm. Imposing plant with a relatively thick stem that is yellowish brown and slightly swollen at the base. Parasitic on the roots of knapweeds, and other Daisy family members. Grows in calcareous grassland. FLOWERS are 18-25mm long, the corolla yellow tinged purple, and the filaments hairy at the base; borne in upright, swollen and rather club-like spikes (Jun-Jul). FRUITS are egg-shaped capsules, concealed by the dead flowers. LEAVES are scale-like. STATUS-Locally common in S and E England only.