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MARSH VALERIAN Valeriana dioica (Valerianaceae) Height to 30cm. Slender perennial with creeping runners and upright flowering stems. Grows in damp grassland and fens. FLOWERS are pale pink and produced on separate-sex plants: males are 5mm across and borne in terminal heads 4cm across; females are 2mm across and borne in heads 1-2cm across (May-Jun). FRUITS are oblong with a feathery pappus. LEAVES are ovate and opposite; basal ones long-stalked. STATUS-Locally common.