| Montpellier broom (Genista monspessulana) and Spanish broom (Spartium junceum) in South Africa: An assessment of invasiveness and options for management S Geerts, PW Botha, V Visser, DM Richardson, JRU Wilson South African Journal of Botany 87, 134-145, 2013 | 38 | 2013 |
| Pollinators can prefer rewarding models to mimics: consequences for the assumptions of Batesian floral mimicry M de Jager, E Newman, G Theron, P Botha, M Barton, B Anderson Plant Systematics and Evolution 302 (4), 409-418, 2016 | 18 | 2016 |
| Diminishing returns drive altruists to help extended family P Kennedy, S Sumner, P Botha, NJ Welton, AD Higginson, AN Radford Nature ecology & evolution 5 (4), 468-479, 2021 | 15 | 2021 |
| Rodents and baboons reduce seed cone production of Protea neriifolia PW Botha, A Pauw South African Journal of Botany 108, 303-307, 2017 | 6 | 2017 |
| The world without birds: an experimental test of the ecological significance of pollinating birds for plant communities PW Botha Stellenbosch: Stellenbosch University, 2017 | 4 | 2017 |
| Why do French (Genista monspessulana) and Spanish brooms (Spartium junceum) not sweep across South Africa? S Geerts, PW Botha, V Visser, DM Richardson, JJ Le Roux, N Mavengere, ... South African Journal of Botany, 165, 2013 | 1 | 2013 |
| How do fynbos plant–pollinator communities respond to the loss of birds? P Botha, A Pauw, C Hui South African Journal of Botany, 173, 2015 | | 2015 |
| Brooms (Spartium junceum and Genista monspessulana) in the Western Cape P Botha | | 2011 |
