Hanne & Jens Eriksen / Morning glory (Convolvulus cephalopodus) flowering, March, Oman

Colin Varndell / Great bindweed (Calystegia silvatica) flowering in hedgerow, Dorset, UK, September

Gary K. Smith / Flowers of Field Bindweed (Convolvulus arvensis). Norfolk, England, June.

Ernie Janes / Field bindweed (Convulus arvensis) flowers, UK

Colin Varndell / Bud of Hedge Bindweed (Calystedia sepium). Dorset, UK, July.

Pete Oxford / Beach Morning-Glory (Ipomoea Pes-caprae) in flower. Pez Maya, Yucatan Peninsula, Mexico.

Nature Production / Morning Glory (Ipomoea nil) seed, cross-section

Stephen Dalton / Bindweed or Convolvulus (Calystegia) growing from root fragment. UK, June.

Angelo Gandolfi / Sea Bindweed / Beach Morning Glory (Calystegia soldanella) in flower on sandy sea shore, Italy, May

Angelo Gandolfi / Sea Bindweed / Beach Morning Glory (Calystegia soldanella) in flower on sandy sea shore, Italy, May

LYNN M. STONE / Morning Glory (Ipomoea sp) in flower, Connecticut, USA

Adrian Davies / Sea Bindweed (Calystegia soldanella) in flower, Fanore Sand Dune, The Burren, County Clare, Republic of Ireland