Materia Medica

Verbena hastata (Blue Vervain), realistic botanical photo
Blue Vervain (Verbena hastata) — Swamp Verbena, Wild Hyssop
A whole-plant guide to Blue Vervain (Verbena hastata), clearly distinguishing it from European vervain and lemon verbena, with traditional use, limited research, pregnancy and medication cautions, cultivation and folklore. Read more...
Common Vervain (Verbena officinalis) — European Vervain, Herb of the Cross
A whole-plant guide to European or common vervain (Verbena officinalis), covering traditional use, key constituents, the limits of modern clinical evidence, identification, pregnancy cautions, and safety. Read more...
Valerian (Valeriana officinalis) — All-Heal, Garden Heliotrope
A guide to Valeriana officinalis covering valerian root, traditional sleep use, mixed insomnia research, sedation interactions, rare liver-safety reports and folklore. Read more...
Vanilla (Vanilla planifolia) — Flat-Leaved Vanilla, Bourbon Vanilla
Vanilla is the cured fruit of a climbing tropical orchid, not simply the flavor molecule vanillin. This guide covers Vanilla planifolia identity, pollination, curing, aroma chemistry, culinary use, traditional medicine, extract standards, allergy and occupational sensitivity, and conservation. Read more...
Vetiver (Chrysopogon zizanioides) — Khus, Khus-Khus
Vetiver is a deep-rooted tropical grass valued for its aromatic roots, earthy essential oil, traditional cooling uses, perfumery, soil stabilization and environmental applications. This guide covers current taxonomy, root chemistry, essential-oil production, traditional medicine, research limits, fragrance safety, growing and sustainable harvest. Read more...