Peganum Harmala (Syrian Rue)

Peganum harmala (Syrian Rue) – Seeds | 10 g, 25 g, and 100 g

Peganum harmala, known in English as Syrian Rue, is a perennial herbaceous plant of the Nitrariaceae family, native to arid and semi-arid regions ranging from the Mediterranean basin to Central Asia. Its seeds are the most studied part from a phytochemical perspective: they contain beta-carboline alkaloids – primarily harmine, harmaline, and tetrahydroharmine – with well-documented monoamine oxidase inhibitor (MAOI) activity in the scientific literature (Herraiz & Chaparro, 2006; McKenna et al., 1984).

Botanical Description

Peganum harmala is a low-growing plant, between 30 and 80 cm tall, with highly branched stems from the base, fleshy alternate leaves, and white flowers with five petals. It produces capsule fruits containing numerous dark brown, angular, and irregular seeds. This species is very drought-resistant and can withstand extreme temperature conditions, explaining its wide natural distribution in Iran, Afghanistan, Pakistan, North Africa, and the Iberian Peninsula.

Phytochemical Profile of the Seeds

The seeds of Peganum harmala exhibit a notable concentration of beta-carboline alkaloids. Harmine and harmaline are the most studied; both act as reversible inhibitors of the monoamine oxidase (MAO) enzyme, a mechanism well-documented in numerous scientific publications (Herraiz & Chaparro, 2006). Tetrahydroharmine (THH) is the third principal alkaloid in the profile, also present in Banisteriopsis caapi, explaining the phytochemical parallels documented between both species in the ethnobotanical literature (McKenna et al., 1984; Ott, 1994).

Etnobotanical and Historical Context

Peganum harmala has one of the longest documented trajectories in the traditional medicine of the Middle East and Central Asia. Its use is recorded in classical Arabic pharmacopoeia, medieval Persian medicine texts, and in the herbal traditions of North Africa. In numerous cultures of the region, it has been used as incense in ritual and purification contexts, a practice that persists in some Eastern Mediterranean communities (Schultes & Hofmann, 1979).

In the context of modern ethnobotany, its alkaloid profile – identical to that of Banisteriopsis caapi in its three main components – has been characterized in ethnobotanical and ethnopharmacological publications, including the work of Jonathan Ott who coined the term anahuasca for geographically substitutive plant preparations (Ott, 1994).

To expand on the botanical and ethnobotanical context of this species and its relation to other plants in the catalog, please consult our ayahuasca section.

Formats and Presentation

The seeds are available in three formats: 10 g, 25 g, and 100 g. At Edabea, we work with suppliers specialized in ethnobotany applying selection criteria and quality control to ensure the authenticity and stability of the material.

Conservation

The seeds of Peganum harmala are stable under appropriate storage conditions. To maintain their physical characteristics over time:

• Store in a well-sealed container, preferably airtight.
• Keep in a cool, dry place protected from direct light.
• Avoid moisture and cross-contamination with other materials.

Legal Aspects

The seeds of Peganum harmala are not included in the lists of controlled substances in Spain or in most European Union countries. However, legal circumstances may vary by jurisdiction. It is the buyer's responsibility to verify the applicable regulations in their place of residence. This product is marketed exclusively as botanical collection material and ethnobotanical research.

Frequently Asked Questions about Peganum harmala

What are beta-carboline alkaloids?

Beta-carboline alkaloids are nitrogenous compounds found naturally in various plant species. In Peganum harmala, the main ones are harmine, harmaline, and tetrahydroharmine. Their MAOI activity is well-characterized in the phytochemical literature since McKenna et al. (1984) and has been the subject of multiple subsequent analytical studies (Herraiz & Chaparro, 2006).

What phytochemical relationship does it have with Banisteriopsis caapi?

Both species share the same profile of principal beta-carboline alkaloids: harmine, harmaline, and tetrahydroharmine. This phytochemical coincidence has been documented in the ethnobotanical literature and underpins the interest in Peganum harmala as a comparison research reference with Banisteriopsis caapi (McKenna et al., 1984; Ott, 1994). The relative proportions of each alkaloid vary between species and depending on cultivation and processing conditions (Callaway, 2005).

In what formats are the seeds available?

The seeds of Peganum harmala are available in packages of 10 g, 25 g, and 100 g. The 10 g format is suitable for collection or initial study. The 25 g and 100 g formats cater to researchers or collectors working with larger volumes or needing a broader batch reference.

Is it legal to buy Peganum harmala in Spain?

Yes. The seeds of Peganum harmala are not included in the lists of controlled substances in Spain or in most European Union countries. It is advisable to verify local regulations before acquiring them, as the situation may vary in other jurisdictions outside the EU.

How should the seeds be stored?

In a well-sealed container, in a cool, dry place protected from direct light. Under these conditions, the material remains stable for an extended period without significant loss of its physical characteristics.

About This Content

Information prepared by the specialized team at Edabea Natura, with over 15 years of experience in selecting and marketing ethnobotanical materials. The phytochemical and ethnobotanical information is based on the cited bibliographic sources and on direct knowledge of each batch material. Last updated: April 2026. For inquiries regarding availability or characteristics of the current batch, contact us at contacto@edabea.com.

References: Callaway, J.C. (2005). Various alkaloid profiles in decoctions of Banisteriopsis caapi. Journal of Psychoactive Drugs, 37(2), 151–155. — Herraiz, T. & Chaparro, C. (2006). Human monoamine oxidase enzyme inhibition by coffee and β-carbolines norharman and harman. Life Sciences, 78(8), 795–802. — McKenna, D.J., Towers, G.H.N. & Abbott, F. (1984). Monoamine oxidase inhibitors in South American hallucinogenic plants. Journal of Ethnopharmacology, 10(2), 195–223. — Ott, J. (1994). Ayahuasca Analogues: Pangæan Entheogens. Kennewick: Natural Products. — Schultes, R.E. & Hofmann, A. (1979). Plants of the Gods. New York: McGraw-Hill.