 
                                        Bitter Leaf Tree (Gymnanthemum extensum)
The best use for components of bitter leaf tree (Gymnanthemum extensum, syn. Vernonia amygdalina, Pim Pai Lin; 展枝斑鸠菊 zhan zhi ban jiu ju in Chinese; หนานเฉาเหว่ย nan chao woe in Thai) will vary, depending on your ailment and who you ask. It has a number of folkloric uses that vary by different regions throughout the world, especially in parts of Asia and Africa. Leaves of bitter leaf tree can apparently be used for everything from a crispy substitute for salad greens, to treating parasitic worms, to regulating issues for diabetics, to treating Malaria symptoms. Simply put: Bitter leaf tree is an edible plant that aligns with the thinking that bitter foods are key to digestion support and general well-being. Bitterness in plants like Gymnanthemum extensum is an evolutionary trait to discourage animals from grazing on it. However tempted herbalists learned that you can offset the bitter taste of the leaves by boiling or soaking them in multiple changes of water. This member of the Astera
