131312 ZIGZAG CLOVER Trifolium medium (Fabaceae) Height to 50cm. Downy perennial of undisturbed grassy places. Similar to Red Clover but has zigzag stems. FLOWERS are reddish purple and borne in short-stalked heads that are 2-3cm across (May-Jul). FRUITS are concealed by calyx. LEAVES are trifoliate with narrow leaflets; stipules are not bristle-tipped. STATUS-Locally common, except in S.