期刊
PHYTOTAXA
卷 543, 期 1, 页码 51-63出版社
MAGNOLIA PRESS
DOI: 10.11646/phytotaxa.543.1.5
关键词
China; Japan; Compositae; Cirsium; taxonomy; expanded distribution area
资金
- National Natural Science Foundation of China [31970229, 32170211]
Based on observations, we found that two recently described plant taxa from Zhejiang province in China are indistinguishable from two species from Japan. Therefore, we consider them as synonyms of the Japanese species, and their distribution area has expanded in China.
Based on observations on both herbarium specimens (including type materials) and living plants in their type localities, we demonstrate that Cirsium paludigenum and C. zhejiangense, two taxa recently described both from Zhejiang province of China, are indistinguishable from C. sieboldii and C. yezoense, two species with their type localities from Japan. We therefore reduce C. paludigenum to the synonymy of C. sieboldii, and C. zhejiangense to the synonymy of C. yezoense. The distribution area of both C. sieboldii and C. yezoense are widely expanded in China.
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