How to use this page
- Search by Latin or common name (e.g., Achillea, yarrow).
- Jump A–Z to scan alphabetically (use “0–9” for numerals).
- Filter by Action (e.g., astringent), Preparation (tincture, infusion), or System (digestive, immune).
- Reset with Clear to see the full index again.
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.
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Pleurotus eryngii King Oyster Coming soon
Polyporus umbellatus Zhu Ling Coming soon
Poplar buds (balm of gilead) Coming soon
Prickly ash bark Coming soon
Propolis (Apis mellifera) Coming soon
Pueraria lobata Kudzu Root Coming soon
Pulsatilla (caution) Coming soon
Punarnava Coming soon
Pygeum Coming soon