Tagged: pyrrolizidine alkaloid PicturesList 01 The process · 14 Jul 2026 Not Every Plant Cut Into a Rooibos Harvest Is Rooibos A Cape weed common across rooibos country looks enough like the crop to be missed at harvest, and carries a compound the tea plant does not make on its own. Here is what South African chemists traced it to, and what independent testing has actually found. Nothing filed under this topic yet.