Mostly
twining or trailing herbs (in our area) often with milky juice; leaves
alternate, no stipules; flowers single and axillary to terminal and cymose;
calyx sometimes enclosed in bracts, sepals imbricate; corolla gamopetalous,
usually funnelform to salverform, usualy twisted in the bud; fruit a 2-6 seeded
capsule.
Calystegia sepium ( Convolvulus sepium)