Calystegia silvatica (Kit.) Griseb.

Bracteoles broad-ovate, c. 2 cm long, inflated, one overlapping the other on both sides at flowering. Leaves ovate to broad-ovate, hastate, mostly 5–10 cm long. Prostrate or twining herb. Naturalized in Wahroonga and Bowral districts. Introd. from Europe. Fl. summer