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