There are 6 kinds of ferns
Fern is a genus of ferns in the family Fernaceae, which is also known as fistula and mountain wild vegetables, and is mainly divided into 6 kinds of edible ferns, Yunnan ferns, sickle feather ferns, long-feathered ferns, European ferns and hairy axis ferns. The height of the edible fern is about 1 meter, the color of the petiole is yellowish brown, and the leaf blade is yellowish green and glossy. The plant likes temperature and light, and grows in rock crevices where there is plenty of light.
The height of the Yunnan fern is about 1 meter, the petiole is more robust, smooth and hairless. Plants compound leaves, leaflets more, leaf blade opposite, shape is lanceolate, color is lime green, leaf blade spreading, groove marks obvious, the tip is more pointed. The plant likes warm climate, grows in the middle of the altitude, mainly distributed in the western region of Yunnan.
The height of the sickle feather fern is about 2 meters, the petiole is black-brown, and the leaf blade is darker in color, dark green, smooth and hairless. Plants like temperature, like light, more growth in the light of the mountains or slopes, distributed in the Guangdong area. Long feather fern like acidic soil, height in 2 meters or so, the plant likes temperature, more growing in the wasteland, mainly distributed in Yunnan area.
The height of the European fern is about 1 meter, the petiole is straw-colored, and the leaves are alternate, dark green in color. The plant prefers warmth and grows on slopes and woodlands at lower altitudes, distributed in the European region. The height of the hairy axis fern is more than 1 meter, the petiole is brown, the fronds are green, the plant grows on slopes, distributed in tropical and subtropical regions.