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In page Rood:

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A unique rood exists at St Mary's parish church, Charlton-on-Otmoor, near Oxford, England, where a large wooden cross, solidly covered in greenery stands on the early 16th-century rood screen (said by Sherwood and Pevsner to be the finest in Oxfordshire).[1] The cross is redecorated twice a year, on 1 May and 19 September (the patronal festival, calculated according to the Julian Calendar), when children from the local primary school, carrying small crosses decorated with flowers, bring a long, flower-decorated, rope-like garland. The cross is dressed or redecorated with locally obtained box foliage. The rope-like garland is hung across the rood screen during the "May Garland Service".[2]