Abstract:

Aims: Species cataloguing is the basis for studies of flora, monitoring of biodiversity, and the conservation of rare and endangered species. The vascular plant catalogue of Ningxia is of great significance for the protection of plant diversity, and the development and utilization of plants.
Method: Based on Ningxia Flora (2nd edn), this article combined the data from years of field work and published literature to revise the lists of wild vascular plants in Ningxia according to APG IV classification system.
Results: There are 1,754 species of wild vascular plants belonging to 597 genera and 127 families. The top 10 dominant families were Asteraceae, Poaceae, Fabaceae, Rosaceae, Ranunculaceae, Amaranthaceae, Lamiaceae, Cyperaceae, Caryophyllaceae, and Apiaceae, which are comprised of 939 species, accounting for 53.53% of the total. The family composition is dominated by those with less than 20 species, and the genus composition is dominated by those with less than 5 species. A total of 230 newly recorded species have been found in Ningxia since 2007. There are 65 species of rare, endangered plants belonging to 44 genera and 25 families, and 28 species of invasive plants belonging to 22 genera and 9 families.
Conclusion: In terms of land areas and location, the diversity of wild vascular plants in Ningxia is abundant. The results can provide basic data for the revision of Ningxia Flora (3rd edn) and the monitoring and conservation of biodiversity.

Key words: Ningxia, wild vascular plants, species cataloging, rare and endangered, exotic invasion