What rare plants are there in China? Tell me about their distribution.

In the List of Rare Plants in China, pteridophytes rank first among rare and endangered pteridophytes. It is recorded in the book: "Pine leaf fern is produced in the vast area south of the southern slope of Qinling Mountain, and in other parts of the pan-tropics. It is an ancient relic (meaning living fossil) plant and is considered to be the oldest surviving fern. "

Mexican cedar

Taxodium mexicana is a genus of Taxodium in Huperzia, with tall and epiphytic plants. Distributed in Zhejiang, Jiangxi, Fujian, Taiwan Province, Hunan, Guangdong, Guangxi, Guizhou, Yunnan and other places.

thorny

Hong Kong Island, Lantau Island, Tai Mo Shan. Fujian, Taiwan Province, Guangdong, Guangxi, Hainan, Yunnan, Sichuan and Tibet.