BioStor
 | An Analysis of the Flora of Southern Africa: Its Characteristics, Relationships, and Orgins Peter Goldblati (1978) Annals of the Missouri Botanical Garden 65: 369-436 |
 | Bolandia (Asteraceae, Senecioneae): a new genus endemic to Southern Africa Kevin Balkwill, Eric B Knox and Glynis Cron (2006) Novon 16: 224-230 |