Materia Medica

Astragalus mongholicus / membranaceus (Huang Qi) plant growing in botanical garden, realistic photo
Astragalus (Astragalus membranaceus) — Huang Qi, Milk Vetch
A whole-plant guide to Astragalus (Astragalus membranaceus), including Huang Qi tradition, root identification and preparations, modern evidence limits, autoimmune and medication cautions, cultivation and spiritual context. Read more...
Ophiocordyceps sinensis (Cordyceps), realistic photo
Cordyceps (Ophiocordyceps sinensis) — Caterpillar Fungus, Dong Chong Xia Cao
A guide to Cordyceps that distinguishes wild Ophiocordyceps sinensis from cultivated Cordyceps militaris, with traditional Chinese context, evidence limits, blood-sugar and bleeding cautions and sustainability concerns. Read more...
Guarana (Paullinia cupana) — Brazilian Cocoa, Zoom
A guide to Paullinia cupana covering guarana seed, Amazonian tradition, caffeine effects, research and stimulant safety. Read more...