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RUSSIAN COMFREY Symphytum x uplandicum (Boraginaceae) Height to 1m. Hybrid between Common and Rough Comfreys, found in hedgerows and on verges. Note the slightly winged stems. FLOWERS are 12-18mm long, usually bluish purple and borne in curved clusters (May-Aug). FRUITS are nutlets. LEAVES are oval; stalks of upper ones run a short distance down stem. STATUS-Widely naturalised. Nb. various other hybrid garden escape comfreys are naturalised locally eg Symphytum ‘Hidcote Blue’.