Brockhaus and Efron Encyclopedic Dictionary
Small Brockhaus and Efron Encyclopedic Dictionary
Flora Reipublicae Popularis Sinicae, volume 16(1)
Flora of the Lesser Antilles, Leeward and Windward Islands
Global Biodiversity Information Facility
United States Department of Agriculture Plants Database
World Checklist of Selected Plant Families
Interim Register of Marine and Nonmarine Genera
Open Tree of Life reference taxonomy version 3.2
Species Plantarum. 1st Edition, Volume 1
A Scientific Dataset of useful plants of China