Claim: Siyang County is part of the Jiangsu Province in China and is known for its poplar trees.
Evidence: Siyang County (simplified Chinese: 泗阳县; traditional Chinese: 泗陽縣; pinyin: Sìyáng Xiàn) is under the administration of Suqian, Jiangsu province, China. Siyang is famous for its poplar tree. 
Jiangsu Siyang is famous for its poplar tree. People's Republic of China