Pteridium aquilinum is not an angiosperm, but a fern. Pteridium aquilinum generally refers to those edible ferns, and the edible part is its tender leaves. Because it is a lower spore plant, not a seed plant, it is not an angiosperm. Pteridium aquilinum plants can be as high as one meter, the dry leaves are nearly leathery, the color is dark green and the top is hairless. Its leaves, buds and tender stems are nutritious and edible. This plant does not bloom, mainly distributed in the Yangtze River basin.

Classification of bracken

There are many kinds of bracken, which are mainly divided into the following types according to regional differences, such as bracken in Chengde, Hebei, bracken in Inner Mongolia, bracken in Heilongjiang, bracken in Guizhou and bracken in Hunan.

1, Pteridium aquilinum in Chengde, Hebei:

It is a common wild vegetable. The planting area in Chengde is 33,000 hectares, and the annual output of vegetables is 1 10,000 tons. Chengde is one of the main producing areas of Pteridium aquilinum in China.

2, Liaoning bracken:

It is distributed in various mountainous areas of Liaoning Province, with large quantity and output, and is mainly exported abroad.

3, bracken in Inner Mongolia:

Distributed in all parts of Inner Mongolia. The local picking time is June every year, and the annual output is about 200 tons.