Textual Research on the Legal Medicinal Plants of Ferns

OBJECTIVE To clarify the origin of legal medicinal plants from ferns, which were made some chaos because of the change of classification system and species identification, and to correct related problems about the origin of the plants from ferns in the standards of Chinese crud drugs. METHODS Query for Chinese crude drug standards of state and various provinces and autonomous regions to find out the species with different Chinese and Latin names for the same plant from ferns, and make textual research on plant taxonomy, species identification and so on. RESULTS In Chinese crude drug standards of state, various provinces and autonomous regions it contained 27 families, 88 species original plants from ferns, including 53 species without confusion in species identification and Chinese or Latin names, 5 species with confusion of Chinese names or Latin names due to the change of classification system. There were 11 species with problems of species identification and taxonomic grade, 19 species with problems of Chinese name confusion. The confused types of textual were researched into the correct. CONCLUSION Although there are a little problems in the origin of legal medicinal plants from ferns, these problems can be solved through the study.