1. Rhizome characteristics: The underground rhizomes of bracken are dark brown, extend laterally, and are densely covered with rusty yellow pubescence. 2. Leaf characteristics: Bracken leaves are broad triangular or oblong triangular in shape, with dense leaf surface. 3. Growth habits: Bracken generally grows on sunny mountain slopes at an altitude of 200-830 meters. 4. Distribution range: Bracken is mainly distributed in the Yangtze River Basin and the north of China.

Morphological characteristics of bracken

1. Rhizome characteristics

The underground rhizomes of bracken are dark brown, slender and horizontally extending, densely covered with rusty yellow soft stems. The hairs gradually fall off in the later stage, with a diameter of about 0.6-0.8 cm, a length of about 10 cm, and the longest can reach 30 cm.

2. Leaf characteristics

The petiole of bracken is brown or brown, slightly shiny, with a shallow longitudinal groove on it, and the leaf shape is broad triangular or oblong. Triangular in shape, the apex is tapering, the base is rounded and wedge-shaped, and the veins are very dense.

3. Growth habits

Bracken generally grows on mountain slopes at an altitude of 200-830 meters and in sunny places on the edges of forests. It has strong resistance to high temperatures and colds and is rich in organic matter. , Neutral or slightly acidic soil with deep soil, good drainage, and high vegetation coverage grows well.

4. Distribution range

Bracken is distributed throughout China, mainly in the Yangtze River Basin and the north. In addition, it is also widely distributed in other tropical and temperate areas of the world, and is grown wild. When growing bracken, roots are mainly grown in the first year, profits can be made in the second year, and they enter the peak production period in the third year.