Calystegia sepium subsp. spectabilis Brummitt

Stems climbing to several meters tall, glabrous or pubescent. Petiole 2--8 cm; leaf blade ± triangular with basal lobes 1/3--1/2 X as long as the midvein, glabrous to sparsely pubescent; sinus with divergent sides. Peduncles not exceeding leaf; bracteoles to 3 X 2.2 cm, keeled to somewhat saccate at base and slightly overlapping, apex acute to ± obtuse. Corolla pink, (4.5--)5.5--6.5 cm. Stamens (2.2--)2.5--3 cm; anthers 5.5--6.5 mm. Fl. Jun-Aug, fr. Sep.