Materia Medica

Goldenrod (Solidago canadensis) — Canada Goldenrod, Common Goldenrod
A guide to Solidago canadensis covering goldenrod identification, traditional urinary use, preparation, Asteraceae allergy and fluid-balance safety. Read more...
Goldenseal (Hydrastis canadensis) — Orange Root, Yellow Puccoon
A careful Hydrastis canadensis guide covering goldenseal tradition, berberine chemistry, CYP2D6/CYP3A4 interactions, pregnancy cautions and conservation. 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...
Grindelia (Grindelia squarrosa) — Gumweed, Curlycup Gumweed
A guide to Grindelia squarrosa covering gumweed identification, traditional respiratory use, resinous chemistry, limited research and safety. 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...
Gymnema (Gymnema sylvestre) — Gurmar, Sugar Destroyer
A guide to Gymnema sylvestre covering sweet-taste suppression, Ayurvedic tradition, glucose research, hypoglycemia and medication cautions. Read more...
Original botanical visualization of Chlorella vulgaris, green algal culture with magnified circular cells
Chlorella (Chlorella vulgaris) — Green Algae, Freshwater Algae
A researched guide to Chlorella vulgaris covering microalgal identity, nutrition, processing, modern clinical research, product quality, the vitamin K–warfarin interaction, and safety. Read more...
Hawthorn (Crataegus monogyna) — Mayflower, Thornapple, Whitethorn
A guide to Crataegus monogyna covering hawthorn berry, leaf and flower, traditional heart use, standardized-extract research, medication cautions and folklore. Read more...
Potentilla reptans (Cinquefoil / Creeping Cinquefoil), realistic botanical photo
Cinquefoil (Potentilla reptans) — Creeping Cinquefoil, Five-Finger Grass
A species-specific guide to creeping cinquefoil (Potentilla reptans) covering identification, traditional astringent use, modern phytochemical research, safety, growing, and the important distinction from tormentil (P. erecta). 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...
Original botanical visualization of Salvia sclarea Clary Sage, lilac-pink bracts and pale flowers above fuzzy crinkled leaves
Clary Sage (Salvia sclarea) — Clear Eye, Muscatel Sage
A whole-plant guide to clary sage (Salvia sclarea) covering identification, aromatic chemistry, traditional uses, modern research, essential-oil safety, pregnancy cautions, and cultivation. Read more...
Holy Basil (Ocimum tenuiflorum) — Tulsi, Sacred Basil
A guide to Ocimum tenuiflorum covering tulsi's sacred and Ayurvedic context, tea use, emerging research, glucose and medication cautions, and safety. Read more...