English: Japanese Bindweed.
Region: East Asia, northern and eastern China, Japan, Korea.
Habitat: sunny grassy place; thickets in lowland; waste places, grassy or shrubby hillsides.
Use: medicine; food, root, cooked; young shoots, cooked.
BotanyHerb; perennial; climber; 2.50 m tall.
Root: rhizomatous rootstock.
Stems: several metres long; scrambling over the ground, twining into surrounding vegetation for support.
Pollination: bees, lepidoptera.
TaxonomyNearly all taxa in Calystegia intergrade geographically into neighboring taxa with the exception of the widespread coastal species,
Calystegia soldanella.