| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Medicinal Plants of South Africa | 978-1-875093-37-3 (1-875093-37-0) | 2012 | Ben-Erik van Wyk · Nigel Gericke |
| Medicinal plants of South Africa | 978-1-875093-09-0 (1-875093-09-5) | 2002 | Ben-Erik van Wyk · Nigel Gericke |
| Poisonous Plants of South Africa | 978-1-875093-30-4 (1-875093-30-3) | 2002 | Ben-Erik van Wyk · Fanie van Heerden |