153684 SEA BINDWEED Calystegia soldanella (Convolvulaceae) Creeping. Prostrate perennial that grows on sand dunes, and occasionally on stabilised shingle. FLOWERS are 3-5cm across, funnel-shaped and pink with 5 white stripes; on slender stalks (Jun-Aug). FRUITS are capsules. LEAVES are kidney-shaped, fleshy, up to 4cm long and long-stalked. STATUS-Widespread on coasts but locally common only in S.