title: [Varieties textual research and usage investigation of white flos gentianae, a Tibetan medicine].
abstract: OBJECTIVE
  To clarity the original plants and the main application varieties of White Flos Gentianae.
  
  
  METHODS
  Herbal textual research, wild specimen collection, investigation and collection of the samples from Tibetan hospital, Tibetan pharmaceutical factory and medical material market were carried out simultaneously to identify the original plants of White Flos Gentianae.
  
  
  RESULTS
  The results of varieties textual research and specimen identification showed that Gentiana szechenyii, G. purdomii and G. algida were in accord with the record of Tibetan herbal textual The three species above were the original plants of White Flos Gentianae. The identification of 20 batches samples showed that G. szechenyii was the main application variety. The other varieties were only used in Tibetan hospitals. All the samples above were flowering branches.
  
  
  CONCLUSIONS
  It was necessary to strengthen the research on variety systematization of White Flos Gentianae make a further discussion on the taxonomy position of G. purdomii, G. algida and the white flos population. Its was also nessary to establish and improve the quality standard of different variety based on the principle of "one species, one name". The quality specification of White Flos Gentianae should be established and improved to standard clinical utilization and produce feeding. More study of resources investigation and cultivation of G. szechenyii should be carried on to meet the demand of produce and clinic.
authors.forename: Shi-Hong
authors.initials: SH
authors.lastname: Zhong
authors.forename: Rui
authors.initials: R
authors.lastname: Gu
authors.forename: Ling
authors.initials: L
authors.lastname: Ma
authors.forename: Yu-Ying
authors.initials: YY
authors.lastname: Ma
authors.forename: Yong-Zhong
authors.initials: YZ
authors.lastname: Zeweng
authors.forename: Yun
authors.initials: Y
authors.lastname: Cao
authors.forename: Cai-Hong
authors.initials: CH
authors.lastname: Zhang
mesh_terms: D002681:China; D004358:Drug Therapy; D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000627:therapeutic use*; D035264:Flowers / Q000033:anatomy & histology / Q000737:chemistry / Q000254:growth & development; D030012:Gentiana / Q000033:anatomy & histology / Q000737:chemistry* / Q000145:classification* / Q000254:growth & development; D049690:History, Ancient; D006801:Humans; D008513:Medicine in Literature; D038861:Medicine, Tibetan Traditional / Q000266:history; D010946:Plants, Medicinal / Q000737:chemistry / Q000145:classification / Q000254:growth & development
chemical_list: D004365:Drugs, Chinese Herbal