The fern is actually similar to mustard greens and is a nutritious wild vegetable that is popular and loved by many people. The fern also has a fist vegetable alias, because the fern leaf surface appears to be curved, some look like a clenched fist, so it has this name.

Generally a fern can grow to a height of about 1 meter, and it has a long rhizome with pilose hairs in a rusty yellow color. The leaves are triangular in shape, and are dark green when dry, making them very recognizable.

Species introduction:

(1)Hebei Chengde fern

Hebei Chengde fern is a famous wild vegetable in Hebei province, Chengde area has an area of 33,000 hectares or more, mainly in Longhua, Fengning, Pingquan, Kancheng and other places. The annual output of the whole area is 1,000 tons, which is the main production base of fern in China.

(2) Liaoning fern

Liaoning fern is distributed in the mountainous areas of Liaoning Province, especially in the eastern mountainous areas with a wide distribution and large number. It is mainly exported to Japan and other countries, and is also popular in the domestic market.

(3) Inner Mongolia fern

Indonesia fern is distributed throughout Inner Mongolia, but the main producing areas in Chifeng City, Xing'anmeng and other places, the annual output of about 200 tons. The local picking period is in June.

(4) Heilongjiang fern

Heilongjiang fern at an altitude of 200 to 800 meters in the alpine zone are distributed, and more mixed with weeds. mid-May began to come out of the soil, late May to early early May can be harvested.