birthwort

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birthwort

(bûrth`wûrt, –wôrt), common name for the Aristolochiaceae, a family of shrubs and woody climbing vines found in the tropics and other warm regions. The largest genus, Aristolochia, includes several plants cultivated in the United States as medicinals (e.g., the Virginia snakeroot and the birthwort) or as ornamentals for their curious flowers (e.g., the pelican flower and the Dutchman's-pipe, or pipe vine). The family also includes the North American wild ginger (Asarum canadense), unrelated to the true gingers of Asia. The Aristolochiaceae are classified in the division MagnoliophytaMagnoliophyta
, division of the plant kingdom consisting of those organisms commonly called the flowering plants, or angiosperms. The angiosperms have leaves, stems, and roots, and vascular, or conducting, tissue (xylem and phloem).
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, class Magnoliopsida, order Aristolochiales.
References in periodicals archive ?
Although the product was labeled as containing the herb Stephania tetrandra, it is likely that Aristolochia fangchi had been substituted for it, thereby accounting for the presence of aristolochic acid in the product.
The manufacturer inadvertently replaced one of the herbs, Stephania tetrandra, with Aristolochia fangchi, which has a similar-sounding Chinese name.
It has been reported that AA would have a significant risk factor for urothelial carcinoma, probably associated with the highest risk when the cumulative level exceeds 200 g crude drug of Aristolochia fangchi (Nortier and Vanherweghem, 2002).
Presence and absence of aristolochic acids in species of Aristolochiaceae and species of their botanical name-related families Herb Plant part Aristolochiaceae (Madouling Ke [TEXT NOT REPRODUCIBLE IN ASCII]) Aristolochia fangchi Y.