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NL·0137PlantsRanunculaceaeHerb81 field observations
Black seed (Black cumin)NL·0137
Plate 1 of 4. (c) Conrad Altmann, bazı hakları saklıdır (CC BY), yükleyen: Conrad Altmann · via iNaturalist

Herbarium of the Nature Library

Name
Nigella sativa
Family
Ranunculaceae
Native to
Probably South-West Asia and the eastern Mediterranean; ancient crop, wild origin uncertain
Habitat
Farmland, Mediterranean and steppe grassland
IUCN NE · Not evaluated

Black seed (Black cumin)

Nigella sativa

Also calledKalonji (Hindi/Urdu) · Al-ḥabba al-sawdāʾ / Ḥabbat al-baraka (Arabic, 'black seed' / 'blessed seed') · Siyāh dāna (Persian) · Upakunchika / Krishnajiraka (Sanskrit) · Çörek otu (Turkish) · Hēi zhǒng cǎo 黑种草 (Chinese)

A delicate, pale-blue-flowered annual of the buttercup family whose small, pungent black seeds are sprinkled on naan and pastries. A hadith calls them a cure for every disease except death.

Nigella sativa is an annual flowering plant in the family Ranunculaceae, native to western Asia, and eastern Europe. It is used as a spice in various food preparations. Wikipedia

§1

What it can do

  1. iSeeds contain thymoquinone, studied for anti-inflammatory, antioxidant and blood-sugar-lowering effects
  2. iiInflated capsule of fused follicles protects the seeds
  3. iiiCompletes its life cycle in about four months
§2

At the table

Edible
Edible with care
Not eaten
Toxic
Deadly

Eatenseeds · seed oil

Seeds are a common spice in South Asian, Middle Eastern and Turkish breads and pickles. The oil applied to skin can cause contact dermatitis.

§3

In the medicine cabinet

TraditionUse
Prophetic / Islamic medicine (Tibb al-Nabawi)Black seed and its oil taken daily as a general tonic, based on the hadith of its blessing
UnaniShoneez / kalonji for asthma, cough, flatulence, worms, skin disease and as a diuretic
AyurvedaUpakunchika for digestion, fever, menstrual and lactation complaints
Modern phytotherapySmall trials of seed or oil for blood pressure, cholesterol, blood sugar and asthma

Weight of evidence

Moderate. Some clinical trials with promising but limited or mixed results.

Active compounds

thymoquinone, thymohydroquinone, dithymoquinone, p-cymene, α-hederin, nigellidine

CautionTrials are mostly small and short. May lower blood sugar and blood pressure and add to the effect of related drugs. Possible bleeding risk with anticoagulants. Large doses are traditionally avoided in pregnancy. Cases of kidney injury and contact dermatitis have been reported.
§4

Fruit & seed

Fruit

Follicetum (fused capsule)

Ripens: Summer

Inflated capsule of 3–7 fused follicles, each with many seeds.

Seed: Nigella Sativa SeedSeed: Nigella sativa seedsSeed: Nigella Sativa seed

Seed

~2–3 mm

Matte black, angular, trigonous seeds

Dispersal
Gravity; shaken from capsules
Germination
7–14 days at 15–20 °C; sow 1 cm deep (darkness aids germination)

Photographs from Wikimedia Commons under open licences; hover for the photographer, click for the file.

§5

How to grow it

Hardiness (USDA zones)

1
2
3
4
5
6
7
8
9
10
11
12
13

Hardy annual; USDA 3–10. Survives winters down to about -40 °C.

Light
Full sun
Water
Low–moderate
Soil
Well-drained loam
Propagation
Seed
To harvest
Seeds 3–4 months after sowing
Climates
Mediterranean, Semi-arid, Temperate
  1. 1Sow directly in spring (or autumn in mild climates), as it dislikes transplanting
  2. 2Thin to 15–20 cm
  3. 3Cut stems when the capsules turn brown and dry
  4. 4Dry in paper bags and shake out the seeds

Can it grow where you are?

or
§6

Where it lives

Recorded sightings

—

geo-referenced records in GBIF, from museums, herbaria and field observers.

Native range

Probably South-West Asia and the eastern Mediterranean; ancient crop, wild origin uncertain

Drag the globe to turn it. Dots are where records exist, not a range map; darker means more records.

§7

In the old herbals & bestiaries

Woodcuts and engravings matched from the Source Library’s scanned books by name. Plates marked “relative” show a close kin rather than this exact species. Click a plate to read the page it came from, with translation.

§8

In the stacks

Searching the stacks…

Every page naming Nigella sativa in the Biodiversity Heritage Library →

§9

Marginalia

Sahih al-Bukhari records the Prophet Muhammad saying that black seed is a cure for every disease except death. Dioscorides called it melanthion and recommended it for headache and catarrh.

Curiosity

Despite the name 'black cumin', Nigella is no relation of cumin: it belongs to the buttercup family, and its garden cousin is love-in-a-mist.

§10

Kinship

  1. kingdomPlantae
  2. ›phylumTracheophyta
  3. ›subphylumAngiospermae
  4. ›classMagnoliopsida
  5. ›orderRanunculales
  6. ›familyRanunculaceae
  7. ›subfamilyRanunculoideae
  8. ›tribeNigelleae
  9. ›genusNigella
  10. ›sectionNigella
Open its branch on the Wheel of Life →

Photographs: iNaturalist contributors under the licences shown. Records: GBIF.org. Historical plates: Source Library (CC BY-SA 4.0; originals public domain). Summary text: Nature Library editors and Wikipedia (CC BY-SA). Medicinal and edibility notes are historical and educational, not advice. iNaturalist taxon 122834.