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 tricky. You need to look at the bracts subtending the flower; these vary significantly in shape, position and hairiness. Also, look closely at the shape of the leaves. Finally, note the degree of hairiness and the shape of the “sinus”—the angle formed by the lobes at the base of the leaves.