海棠 かいどう Also written カイドウ Meanings Noun flowering crab apple (Malus halliana) Kaido crab apple (Malus micromalus) Chinese flowering apple (Malus spectabilis) Siberian crab apple (Malus baccata) aronia (flower) Kanji 海 sea. Read as カイ. 棠 wild pear tree; crabapple tree. Read as トウ. Jinuma: Japanese Dictionary · Word lists