1997 IUCN Red List of threatened plants
1998
Gillett, Harriet J. |
Walter, Kerry S. |
This represents the most comprehensive compilation of data on threatened vascular plants ever published. It includes the names of some 33,000 plant species determined to be rare or threatened on a global scale. Conservation assessments were provided by the IUCN Species Survival Commission, the National Botanical Institute (South Africa), Environment Australia and CSIRO,.