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Bunium bulbocastanum is a plant species in the family Apiaceae. It is related to cumin (Cuminum cyminum) and commonly called black cumin[citation needed], blackseed,[citation needed], black caraway,[citation needed] or great pignut,[2] and has a smoky, earthy taste. It is often confused with Nigella sativa (which is also called black cumin,[3] blackseed,[citation needed] and black caraway[3]), by which it is often substituted in cooking.

Bunium bulbocastanum
Scientific classification
B. bulbocastanum
Binomial name
Bunium bulbocastanum
  • Bulbocastanum balearicum Sennen
  • Bulbocastanum linnaei Schur
  • Bulbocastanum mauritanicum Willk.
  • Bulbocastanum mediterraneum Albert
  • Bunium agrarium Albert
  • Bunium aphyllum Jan ex DC.
  • Bunium bulbosum Dulac
  • Bunium collinum Albert
  • Bunium crassifolium (Batt.) Batt.
  • Bunium elatum (Batt.) Batt.
  • Bunium fontanesii (Pers.) Maire
  • Bunium majus Vill.
  • Bunium mauritanicum (Boiss. & Reut.) Batt.
  • Bunium mediterraneum Albert
  • Bunium minus Gouan
  • Bunium perotii Braun-Blanq. & Maire
  • Carum bulbocastanum (L.) Koch
  • Carum mauritanicum Boiss. & Reut.
  • Carvi bulbocastanum (L.) Bubani
  • Conopodium balearicum (Sennen) M.Hiroe
  • Diaphycarpus incrassatus (Boiss.) Calest.

Dried B. bulbocastanum fruits are used as a culinary spice in northern India, Pakistan, Bangladesh, Afghanistan, Tajikistan, and Iran. It is practically unknown outside these areas. The tuber-like root is locally collected for food; the "pignut" or chestnut" names refer to it.[citation needed]


Local names for that spice are (काला ज़ीरा) kala zeera (black cumin) or shahi zeera (शाहि ज़ीरा)(imperial cumin) in Hindi, as سیاہ زیرہ (syah zirah, black cumin), کالا زیرہ (kaala zirah, black cumin), and زيره كوهی (zirah kuhi, mountain/wild cumin) in Urdu, زيره كوهی (zireh kuhi, wild cumin) in Persian, and сиёх дона (siyoh dona, black seed) in Tajiki, and in Malayalam "സഹജീരകം".

The commonly used Hindi term shahi zeera may be a distortion of syahi (black in Persian) zeera. However, in the Hindustani language, the term syahi also means "inky black". In Bengali, kalo zeera also means black cumin, but refers to Nigella, not B. bulbocastanum. Nigella is widely used as a spice in Bengali food, while B. bulbocastanum is used rarely.


The plant is native to Europe.[4] It reaches about 60 cm (24 in) tall and 25 cm (9.8 in) wide, bearing frilly leaves and hermaphroditic flowers; it is pollinated by insects and self-fertile.[citation needed]

Black cumin


The plant bears small-sized seeds and one can pluck them once the plant is very dry. Not more than 5 to 8 g can be plucked from each plant, contributing to the high price of $2 per 10 g (1987 rates).

The small, rounded taproot is edible raw or cooked, and said to taste like sweet chestnuts.[citation needed] The leaf can be used as an herb or garnish similar to parsley.

The seeds are most valued as a garnish to high value, very special Indian dishes; they should not be ground, as their flavor would be reduced.


  1. ^ "The Plant List: A Working List of All Plant Species".
  2. ^ "BSBI List 2007". Botanical Society of Britain and Ireland. Archived from the original (xls) on 2014-10-23. Retrieved 2014-10-17.
  3. ^ a b "Bunium persicum". Germplasm Resources Information Network (GRIN). Agricultural Research Service (ARS), United States Department of Agriculture (USDA). Retrieved 2008-03-13.
  4. ^ "Bunium bulbocastanum L.", Plants of the World Online, Royal Botanic Gardens, Kew, retrieved 2018-06-30

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