Herbs of the mountains and the old trade routes
A short reference to plants that have been used in traditional practice across the Mediterranean, the Atlas, the Himalaya and beyond — what they are, where they come from, how they have been used, and where caution is warranted.
Olive
Olea europaea
Part used: fruit (cured), pressed fruit (oil), leaf
Tradition: the tree of Mediterranean civilisation; its oil was the household fat for everything, its cured fruit the daily relish, its leaf a folk remedy for fever and blood pressure.
Composition: oleic acid 55–83%; phenols 50–800 mg/kg — hydroxytyrosol, oleuropein, oleocanthal — plus squalene and vitamin E. Lye-cured olives keep about a tenth of their phenols.
Cured olives are salty. Olive-leaf extracts add to blood-pressure medication; the oil and fruit carry no such caution.
Argan
Argania spinosa
Part used: kernel (pressed for oil)
Tradition: endemic to south-western Morocco, where it grows wild and nowhere else at scale. Women’s cooperatives have pressed the kernels for centuries; culinary oil is roasted, cosmetic oil is not.
Recognition: UNESCO Biosphere Reserve since 1998; the oil-making knowledge was added to UNESCO’s Intangible Cultural Heritage list in 2014.
Composition: high in oleic and linoleic acids, tocopherols.
Saffron
Crocus sativus
Part used: stigmas, hand-picked
Tradition: genetics place its origin in Attica, Greece, where it arose from wild Crocus cartwrightianus. Now cultivated across Iran, Kashmir, Morocco, Greece and Spain — Iran produces 85–90% of the world supply, with Morocco among the top five producers.
Culinary amounts are unproblematic; high supplemental doses are not advised, particularly in pregnancy.
Black Seed
Nigella sativa
Part used: seed, and its pressed oil
Tradition: long-standing use across North Africa, the Levant and South Asia; known as habba sawda or kalonji.
May affect blood sugar and blood pressure — relevant if you take medication for either.
Coriander
Coriandrum sativum
Part used: dried fruit (“seed”); the fresh leaf is a different herb in the kitchen
Tradition: one of the oldest recorded spices, found at Bronze Age sites; a carminative and digestive across the Mediterranean, the Middle East and South Asia, and a foundation spice of pulse dishes and preserved meats.
Composition: essential oil dominated by linalool; fixed oil defined by petroselinic acid, rich in β-sitosterol; 42% fibre, high in calcium, iron and copper.
May modestly lower blood sugar — relevant if you take insulin or sulphonylureas.
Black Pepper
Piper nigrum
Part used: dried fruit (peppercorn) — black, white and green are one fruit at different stages
Tradition: the spice that made the spice trade; a digestive stimulant across South Asia and the Mediterranean, and the near-universal companion of other plants in compound remedies.
Composition: piperine 5–9% — a bioenhancer that raised curcumin absorption 20-fold in a human trial; aromatic oil of pinene, sabinene, limonene and caryophyllene.
Piperine raises blood levels of some medicines (phenytoin and others cleared by CYP3A4). Culinary use is fine; avoid piperine supplements if you take medication with a narrow safety margin.
Indian Costus
Saussurea costus
Part used: dried root — a medicinal root, never a food
Tradition: one of the oldest traded roots of Asia, known as qust al-hindi in the Arab pharmacopoeia; a digestive and anti-inflammatory used as whole powder in small amounts and short courses.
Composition: sesquiterpene lactones — costunolide, dehydrocostus lactone — plant sterols and inulin. Active in cells and animals; no controlled human trials.
Adulteration with aristolochic acid — a kidney poison and carcinogen — is documented. Root of unknown provenance should not be taken at all; only a batch with a laboratory certificate is safe. Potent skin sensitiser; avoided in pregnancy. Critically endangered — cultivated source only.
Spearmint
Mentha spicata
Part used: leaf
Tradition: the mint of Moroccan tea, brewed strong with green tea and taken throughout the day. A social ritual as much as a drink.
Note: gentler than peppermint, with far less menthol.
Lemon Verbena
Aloysia citrodora
Part used: leaf
Tradition: native to Argentina and Chile, carried to Europe in the eighteenth century and long naturalised around the Mediterranean, where it is known as louiza. Taken as an evening infusion.
Thyme
Thymus vulgaris · T. satureioides
Part used: leaf and flowering top
Tradition: T. satureioides is an Atlas endemic; wild mountain thyme (za’itra) is gathered there and infused, especially in cold weather.
Composition: thymol and carvacrol give the characteristic aroma.
Rosemary
Salvia rosmarinus
Part used: leaf
Tradition: a coastal Mediterranean shrub used in cooking since antiquity and long associated, in folk usage, with memory and alertness.
Sage
Salvia officinalis
Part used: leaf
Tradition: the botanical name shares a root with salvere, to be well — an indication of the regard it was held in.
Contains thujone; concentrated extracts and prolonged high intake are not advised, and it is traditionally avoided in pregnancy.
Lavender
Lavandula angustifolia
Part used: flower
Tradition: grown on the dry limestone slopes of Provence and the Mediterranean uplands; used in infusion and as an aromatic.
Chamomile
Matricaria chamomilla
Part used: flower head
Tradition: one of the most widely taken evening infusions in Europe and North Africa.
Belongs to the daisy family — relevant if you react to ragweed, chrysanthemum or related plants.
Valerian
Valeriana officinalis
Part used: root
Tradition: used in European herbal practice for centuries, taken in the evening. The dried root has a famously strong smell.
May compound the effect of sedatives and alcohol. Do not combine without medical advice.
St John’s Wort
Hypericum perforatum
Part used: flowering top
Tradition: a European meadow plant, harvested near midsummer, from which its name derives.
Significant interactions. It induces liver enzymes that metabolise many drugs — including hormonal contraceptives, anticoagulants, antiretrovirals, immunosuppressants and antidepressants — and can render them ineffective. Do not take it without speaking to a doctor or pharmacist.
Milk Thistle
Silybum marianum
Part used: seed
Tradition: a spiny Mediterranean thistle recorded in European herbals for well over a thousand years.
Composition: the seed yields a flavonolignan complex known as silymarin.
Ashwagandha
Withania somnifera
Part used: root
Tradition: a central plant of Ayurvedic practice, classed there as a rasayana or restorative. Also grown across the Middle East and North Africa.
Avoided in pregnancy. Cases of liver injury have been reported with some commercial extracts; caution with thyroid medication.
Holy Basil
Ocimum tenuiflorum
Part used: leaf
Tradition: known as tulsi and grown in courtyards across India, where it carries religious as well as household significance.
Turmeric
Curcuma longa
Part used: rhizome
Tradition: a South Asian staple in both cooking and Ayurvedic practice; the colouring compound is curcumin.
Curcumin is poorly absorbed alone. High-dose extracts may affect blood thinning and have been linked to rare liver reactions.
Bacopa
Bacopa monnieri
Part used: whole herb
Tradition: a creeping wetland plant known as brahmi, used in Ayurveda and associated there with study and recollection.
Commonly causes digestive upset when taken on an empty stomach.
Gotu Kola
Centella asiatica
Part used: leaf
Tradition: used across Sri Lanka, India and South-East Asia, both as a leafy vegetable and in traditional preparations.
Asian Ginseng
Panax ginseng
Part used: root
Tradition: among the most valued plants in Chinese and Korean practice; wild mountain roots have historically commanded extraordinary prices.
May interact with anticoagulants and diabetes medication.
Astragalus
Astragalus membranaceus
Part used: root
Tradition: known as huang qi and used in Chinese practice for centuries, often simmered into broths.
Caution alongside immunosuppressant medication.
Schisandra
Schisandra chinensis
Part used: berry
Tradition: called the “five-flavour berry” in Chinese, for tasting sweet, sour, salt, bitter and pungent at once. Gathered in the forests of Manchuria and the Russian Far East.
Rhodiola
Rhodiola rosea
Part used: root
Tradition: a true mountain plant of Arctic Scandinavia, Siberia and the high Alps, used in Nordic and Russian folk practice.
Wild populations are under pressure in some regions; sustainably cultivated sources are preferable.
Lion’s Mane
Hericium erinaceus
Part used: fruiting body
Tradition: a mushroom, not a herb — grown on hardwood and long eaten in China and Japan as food as well as medicine.
Echinacea
Echinacea purpurea
Part used: root and aerial parts
Tradition: a prairie coneflower used by Plains nations of North America long before it entered European herbal commerce.
Daisy-family plant; caution with autoimmune conditions and immunosuppressant medication.
On sourcing and honesty. Every entry above describes documented traditional use and botanical fact. Where modern research supports a specific effect, we cover it properly in a full article with citations rather than compressing it into a card. Read how we research and verify, and see our disclaimer.
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