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GREATER YELLOW-RATTLE Rhinanthus angustifolius (Scrophulariaceae) Height to 60cm. Upright, semi-parasitic annual. Similar to Yellow-rattle but branched, and with subtle differences in flower structure. Grows in undisturbed grassland. FLOWERS are 15-20mm long, the corolla yellow, 2-lipped with a concave dorsal surface; the 2 teeth on the upper lip are 2mm long; in spikes with triangular, toothed and yellowish green bracts (May-Sep). FRUITS are inflated capsules. LEAVES are oblong with rounded teeth. STATUS-Rare, restricted to a few scattered locations from S England to Scotland.