van der Merwe, Helga, University of Pretoria, South Africa

• Vol 50, No 1 (2008) - Original Research
  Vegetation of the Hantam-Tanqua-Roggeveld subregion, South Africa Part 2: Succulent Karoo Biome related vegetation
  Abstract  PDF
• Vol 50, No 1 (2008) - Original Research
  Vegetation of the Hantam-Tanqua-Roggeveld subregion, South Africa. Part 1: Fynbos Biome related vegetation
  Abstract  PDF  APP. FIG 2
• Vol 52, No 1 (2010) - Original Research
  Plant diversity and flowering displays on old fields in the arid Namaqua National Park, South Africa
  Abstract  HTML  XML  ONLINE APP.  PDF