For assessing the global production and ecological adaptation of Paridis Rhizoma and providing the scientific basis for its production

geographic information system for global medicinal plants (GMPGIS) was used to predict the ecological suitability areas of Paris polyphylla var. yunnanensis and P. polyphylla var. chinensis.Seven conditions

including annual mean temperature

annual precipitation

annual mean radiation

annual mean relative humidity and soil type of P. polyphylla var. yunnanensis and P. polyphylla var. chinensis were selected.The candidates regions covered both traditional and current major producing regions.The result showed that the suitable area for P. polyphylla var. yunnanensis and P. polyphylla var. chinensis growth mainly involved 19 countries

such as China

Brazil

the United States and so on.The ecological suitability regions of P. polyphylla var. yunnanensis and P. polyphylla var. chinensis in China mainly distributed in Yunnan

Sichuan

Guangxi and other 13 provinces.The result demonstrated that GMPGIS was a scientific and valuable tool for the ecological suitability analysis of medicinal plants.This analysis also provides a scientific basis for cultivation and protection of Paridis Rhizoma.