Convolvulaceae: Morning-glory Family — Calystegia & Convolvulus
Morning-glory is immediately recognizable, with its flaring white, pink or pink-striped funnel-shaped flowers. Distinguishing individual species or subspecies is trickier. It is necessary to look at the bracts subtending the flower; these vary significantly in shape, position and hairiness. It is often necessary to look closely at the leaves. The shape of the leaves can be critical, as well as the degree of hairiness and the shape of the “sinus”—the angle formed by the lobes at the base of the leaves.