Toxic fern looks like plants up to 1 meter high.

The rhizome is long and transverse, densely rusty-yellow pilose, and later gradually glabrescent. Leaves distant, brownish brown or brownish straw-colored, slightly glossy, smooth, blade broadly triangular or oblong-triangular; leaves drying subleathery or leathery, dark green, glabrous above, sparsely brown or grayish white hairy or subglabrous below more or less on the main veins of the lobes. Leaf rachis and pinnae smooth, pinnules smooth above, sparsely hairy below, rarely densely hairy, each pinnae with 1 deep longitudinal furrow above, furrow glabrous.

The fern likes sunny environment, generally grows in the shallow mountainous areas of mixed coniferous and broad forests, most of the regions in China are available, its flavor is fragrant and smooth, add some condiments, cool and refreshing, but also can be fried and eaten, processed into dried vegetables.

Fern origin distribution introduction:

1, Hebei: Chengde fern is a famous wild vegetables in Hebei Province, Chengde area of more than 33,000 hectares, divided into face in Lunhua, Fengning, Pingquan, Kuancheng and other places.

2, Liaoning: fern in Liaoning Province, mountainous areas are distributed, especially in the eastern mountainous areas of the distribution of a wide range, the number of exports to Japan and other countries, the domestic market is also very popular.

3, Inner Mongolia: fiddleheads are 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 in June.

4, Jilin: fiddleheads in Jilin Province, mountainous areas are distributed, the production of more than one, every year around May began to market, mainly exported to South Korea, and domestic sales are also very good.

5, Heilongjiang: fern at an altitude of 200 to 800 meters in the alpine zone are distributed, more mixed with weeds, the soil in mid-May, late May to early June harvest.

6, Guizhou: fern distribution is very much, in fact, ferns in Guizhou has the widest distribution, the most varieties, of which ferns in the local picking period from mid-March to August.

7, Hunan: fern in Xiangyin, Miluo, Zhang Guying and other mountains have, spring time is the fern picking period, after about June fern will be molded and grown up can not eat.

8, Ningxia: fern in Guyuan and Gansu Yuzhong County and other places in the distribution of more, especially for the Zhangxian fern higher quality, Jingyuan County, Taihe Mountain, Hassan also have a large number of distribution.