Botanical Overview
Ammi majus, commonly known as Bishop’s weed, greater ammi, or golden lace, is a medicinal plant from the Apiaceae family. It is native to the Mediterranean, North Africa, and Southwest Asia. The fruit and seed are the primary parts used medicinally.
Energetics
Ammi majus is considered warming and drying with bitter and pungent tastes. It has ascending directionality and tonifying tonicity, primarily affecting the qi.
Primary Actions
- Photosensitizer
- Vesicant
- Antispasmodic
- Diuretic
- Uricosuric
Indications
Western
- Psoriasis
- Vitiligo
- Urolithiasis
- Bladder spasms
- Skin infections
Syndromes
- Chronic skin disorders
- Urinary tract inflammation
- Kidney stones
TCM
No traditional indications documented.
Ayurveda
No traditional indications documented.
Unani
- Skin diseases
- Bladder issues
Syndromes
- Chronic skin conditions
- Urinary disorders
Constituents & Mechanisms
Contains furanocoumarins including psoralens such as xanthotoxin and bergapten, which are responsible for its photosensitizing and therapeutic properties. Coumarins also contribute to anti-inflammatory and diuretic effects.
Dosage & Preparations
- Extract of fruit, standardized in furanocoumarins, topical application 0.1-1%
- Powdered seed traditionally used in decoctions, dosage varies
Safety & Contraindications
Ammi majus is a strong photosensitizer and can cause phytophotodermatitis if skin is exposed to sunlight after application. Use is contraindicated during pregnancy and lactation due to potential toxicity. It should be used only under professional supervision. Avoid concurrent use with other photosensitizing agents or phototherapy treatments.
Astrological Correspondences
No credible sources found to assign planetary or elemental rulers.
Selected References
- Ammi majus – PFAF Plant Database
- Community Herbal Monograph on Ammi majus L., Fructus – EMA 2017
- Phytochemical and Pharmacological Activities of Ammi majus L.: A Review – K. Ali et al. 2018
- WHO Monographs on Selected Medicinal Plants – Volume 1 (1999)