Materia Medica

Vaccinium macrocarpon (Cranberry), realistic botanical photo
Cranberry (Vaccinium macrocarpon) — American Cranberry, Bog Cranberry
A whole-plant guide to American Cranberry (Vaccinium macrocarpon), including bog ecology, food use, recurrent-UTI prevention research, why cranberry does not treat an active UTI, warfarin caution, cultivation and folklore. Read more...
Green Tea (Camellia sinensis) — Green Tea Leaf, Matcha
A guide to Camellia sinensis green tea covering caffeine, catechins, tea processing, research, iron absorption and concentrated-extract liver safety. Read more...
Hibiscus (Hibiscus sabdariffa) — Roselle, Jamaica Sorrel, Flor de Jamaica
A guide to Hibiscus sabdariffa covering calyces, tea traditions, blood-pressure research, medication cautions and cultural associations. Read more...