Aesculus pavia, A. glabra, A. octandraand A. hippocastanum from North America were introduced and cultivated in Tonglu of Zhejiang, China.

• 摘要从北美东部引进红花七叶树、光叶七叶树、黄花七叶树、欧洲七叶树等在浙江桐庐开展引种栽培试验。