Herbs & Botanicals

Wild Ginger (Asarum canadense): Identification, Aristolochic Acid Risk, History & Safety
Wild ginger is a native eastern North American woodland groundcover with a long ethnobotanical history, but it is not true culinary ginger. Because Asarum species are associated with aristolochic-acid exposure and serious kidney and cancer risks, this guide focuses on identification, history, ecology and safety rather than internal dosing. Read more...
Wild Cherry Bark / Black Cherry (Prunus serotina): Cough Tradition, Cyanogenic Glycosides, Food Use & Safety
Wild cherry bark comes from the North American black cherry, Prunus serotina, whose dried bark has a long cough-syrup tradition. This guide separates medicinal bark from edible pitted fruit and from cyanogenic pits, leaves and twigs, while reviewing the limited modern human evidence and important safety issues. Read more...
Wild Carrot / Queen Anne’s Lace (Daucus carota): Identification, Food History, Look-Alike Danger & Safety
Wild carrot, or Queen Anne’s lace, is the wild form of the species complex that gave rise to cultivated carrot. Its food and folk-medicine history must be balanced against a serious identification hazard: deadly poison hemlock and water hemlock can grow in similar habitats. This guide emphasizes multi-feature identification, historical use and safety. Read more...
White Mulberry (Morus alba): Fruit, Leaf Research, Blood Sugar Evidence & Safety
White mulberry is both an edible fruit tree and the source of mulberry-leaf teas and extracts used in East Asian food and herbal traditions. This guide separates fruit, leaf, root bark and standardized extracts, reviews the best human evidence for post-meal glucose effects, and covers medication, allergy and invasive-species cautions. Read more...
Wahoo / Eastern Wahoo (Euonymus atropurpureus): Toxicity, Identification, History & Safety
Eastern wahoo is a native North American shrub or small tree with striking pink-red fruit and a place in historical American materia medica. Because all parts can be poisonous if ingested and may cause gastrointestinal and cardiac effects, this article focuses on identification, history, ecology and safety rather than home dosing. Read more...
Vetiver / Khus (Chrysopogon zizanioides; syn. Vetiveria zizanioides): Aromatic Root, Essential Oil, Traditional Use & Safety
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...
Vanilla / Flat-Leaved Vanilla (Vanilla planifolia): Bean Curing, Vanillin, Traditional Use & Safety
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...
Tarragon (Artemisia dracunculus): Culinary Use, Metabolic Research, Estragole Safety & Growing
Tarragon is a classic culinary Artemisia with distinct French and Russian forms, a long digestive tradition, and a small but notable human metabolic trial. This guide separates ordinary food use from concentrated extracts and essential oil, with special attention to estragole and methyleugenol safety. Read more...
Usnea / Old Man’s Beard Lichen (Usnea spp.): Traditional Use, Usnic Acid, Research & Liver Safety
Usnea is a genus of fruticose beard lichens with a long traditional-use history and genuine antimicrobial chemistry, especially around the lichen metabolite usnic acid. This guide explains lichen identity, identification, traditional use, the limits of modern evidence, and the serious liver-safety history of concentrated oral usnic acid. Read more...
Turkey Tail Mushroom (Trametes versicolor; syn. Coriolus versicolor): PSK/PSP Research, Traditional Use & Safety
Turkey Tail is a widespread wood-decaying polypore used traditionally in East Asia and studied through standardized extracts such as PSK and PSP. This guide separates the whole mushroom from proprietary extracts, reviews human oncology evidence without overstating it, and covers identification, look-alikes, safety and product quality. Read more...
Tormentil / Erect Cinquefoil (Potentilla erecta): Astringent Rhizome, Diarrhea Tradition, Research & Safety
Tormentil, Potentilla erecta, is a tannin-rich European rhizome traditionally used for mild diarrhea and minor inflammation of the mouth. This guide separates it from creeping cinquefoil and North American bloodroot, reviews EMA-recognized traditional use, modern human and laboratory research, safety, identification and sustainable rhizome sourcing. Read more...
Tarragon (Artemisia dracunculus): Culinary Use, Estragole, Research & Safety
Tarragon is an aromatic perennial best known as a French culinary herb, but the species also has a long medicinal history. This guide separates French and Russian tarragon, ordinary food use from concentrated essential oil, and promising metabolic research from the safety questions surrounding estragole and methyleugenol. Read more...