How to use this page
  • Search by Latin or common name (e.g., Achillea, yarrow).
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What an entry includes

  • Scientific + common names, parts used, primary actions, systems, preparations.
  • Safety snapshot and links to related Studies when available.
  • Consistent black-and-white, field-guide style illustrations for quick recognition.

Editorial standards: Educational, research-aware, and non-diagnostic. See our Editorial Policy and Sourcing & Citations.

Medical disclaimer: For general education only. Consult a qualified practitioner about individual use, especially with medications, pregnancy, or medical conditions.

Materia Medica A – Z

Our herbal encyclopedia with preparations, uses, safety notes, and research references.

Showing 1–7 of 7 entries (filtered).

F

False unicorn Coming soon
Safety: Details coming soon.
Fennel Coming soon
Safety: Details coming soon.
Feverfew Coming soon
Safety: Details coming soon.
Filipendula ulmaria
Common name(s): Meadowsweet, Queen of the Meadow, Meadwort
Diaphoretic (sudorific)Anti-inflammatoryAnalgesic (anodyne)AntacidCarminative
Preparations: Tea (infusion), Decoction, Tincture (alcohol extract), Syrup, Capsules
Safety: Avoid with aspirin sensitivity, salicylate allergy, or in children with viral infections (Reye’s syndrome risk). Caution with anticoagulant/antiplatelet drugs. Generally safe in moderate doses as tea or tincture.
Forsythia fruit Coming soon
Safety: Details coming soon.
Frangula alnus (syn. Rhamnus frangula) — Frangulae cortex (dried, aged bark)
Common name(s): Alder Buckthorn Bark, Frangula Bark, Glossy Buckthorn Bark
Cathartic (purgative)Laxative
Preparations: Decoction, Tincture (alcohol extract), Powder, Capsules
Safety: Contraindicated in intestinal obstruction, stenosis, acute inflammatory bowel disease, appendicitis, abdominal pain of unknown origin, severe dehydration with electrolyte depletion. Do not use during pregnancy or lactation; not for children <12 years. Limit to short-term use (≤1 week) unless directed by a clinician. Possible cramping/diarrhea; prolonged or excessive use may cause potassium loss—use caution with cardiac glycosides, antiarrhythmics, diuretics, corticosteroids, or licorice. May harmlessly discolor urine.
Frankincense Coming soon
Safety: Details coming soon.