Hans Hillewaert:
Piper friedrichsthalii (habitus)
Hans Hillewaert:
Piper friedrichsthalii (inflorescense)
Hans Hillewaert:
Piper llittorale (inflorescense)
Hans Hillewaert:
Piper nigrum
Hans Hillewaert:
Peperomia rotundifolia (habitus)
Hans Hillewaert:
Piper aduncum