(1) Pteridium aquilinum in Chengde, Hebei Province Pteridium aquilinum in Chengde, Hebei Province is a famous wild vegetable with an area of more than 33,000 hectares, mainly distributed in Longhua, Fengning, Pingquan and Kuancheng. The annual output of the whole region is 1000 tons, which is the main production base of bracken in China.
(2) Pteris Liaoning Pteris Liaoning is distributed in the mountainous areas of Liaoning Province, especially in the eastern mountainous areas. Mainly exported to Japan and other countries, the domestic market is also very popular.
(3) Pteridium aquilinum is distributed all over Inner Mongolia, but the main producing areas are Chifeng City and Xing 'an League, with an annual output of about 200 tons. The local picking period is in June.
(4) Pteridium aquilinum var. Heilongjiang is distributed in the alpine zone with an altitude of 200-800 meters, and most of them are mixed with weeds. It was unearthed in mid-May and can be harvested from late May to the beginning of the month.
(5) Pteridium is widely distributed in Guizhou, and there are many kinds of edible pteridophytes. Among them, the local picking period of Pteridium aquilinum is from mid-March to August.
(6) Pteridium aquilinum is also distributed in Yueyang mountain areas, such as Miluo and Zhangshan. The local spring is the picking period of bracken. After June or so, bracken takes shape and cannot be eaten. The local bracken is scattered, and farmers usually pick some to eat and entertain guests.