Juglandaceae
Black walnut
Juglans nigra
- Family
- Juglandaceae
- Genus
- Juglans
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Common names
By language (44)
- Arabic
- جوز أسود
- Armenian
- Ընկուզենի սև
- arz
- جوز اسود
- Asturian
- Nozal americana
- Azerbaijani
- Qara qoz
- Basque
- Intxaurrondo beltz
- Belarusian
- Арэх чорны
- Breton
- Gwez-kraoñ du
- Bulgarian
- Черен орех
- Cherokee
- ᎬᎿᎨ ᏎᏗ, Black walnut
- Chinese
- 黑胡桃, 黑核桃
- chy
- Otaesémenôtse
- Croatian
- Crni orah
- Czech
- Ořešák černý
- Danish
- Sort valnød
- Dutch
- Zwarte walnoot, Zwarte noot
- English
- Black walnut, American black walnut, Eastern black walnut
- Esperanto
- Nigra juglando
- Estonian
- Must pähklipuu
- Finnish
- Mustajalopähkinä
- French
- Noyer noir
- German
- Schwarznuss, Schwarze Walnuss, Schwarznussbaum
- Greek
- Καρυδιά η αμαυρά, Μαύρη καρυδιά
- Hungarian
- Fekete dió
- Italian
- Noce nero
- Japanese
- ユグランス・ニグラ, クログルミ, 黒くるみ
- Korean
- 흑호두나무
- Lithuanian
- Juodasis riešutmedis, Juodieji riešutai
- lmo
- Nus americà, Nus nìgher
- Macedonian
- Црн орев, Источен северноамерикански црн орев, Источен црн орев
- Norwegian Bokmål
- Svartvalnøtt
- Norwegian Nynorsk
- Svartvalnøtt
- Persian
- گردوی سیاه
- Polish
- Orzech czarny
- Portuguese
- Nogueira-preta
- Russian
- Орех чёрный, Орех черный, Чёрный орех
- Serbian
- Црни орах
- Slovak
- Orech čierny
- Slovenian
- Črni oreh
- Spanish
- Nogal negro, Nogal negro americano
- Swedish
- Svart valnöt
- Turkish
- Kara ceviz
- Ukrainian
- Горіх чорний, Чорний горіх
- Vietnamese
- Óc chó đen
Synonyms
- Juglans nigra f. laciniata Rehder
- Juglans nigra f. nigra
- Juglans nigra f. oblonga (Marshall) Fernald
- Juglans nigra unranked oblonga Marshall
- Juglans pitteursii C.Morren
- Juglans rugosa Dode
- Wallia nigra (L.) Alef.
Flowers
- In flower
- April to May (from 97 flowering iNaturalist observations worldwide)
- Flower colour
- yellow (USDA PLANTS Database)
Characteristics
- Growth habit
- Tree
- Lifespan
- Perennial
- In the US and Canada
- Canada: native, Lower 48 states: native
Toxicity: Slight, as listed by the USDA PLANTS Database (2025-05-29). USDA rates how toxic a plant is to people or livestock; it is not a pet-safety rating, so ask a vet or poison line if a pet or child ate it.
Photos
FlowerPhoto: Sandy Wolkenberg, CC BY 4.0, from iNaturalist 
FlowerPhoto: aarongunnar, CC BY 4.0, from iNaturalist 
FlowerPhoto: Sandy Wolkenberg, CC BY 4.0, from iNaturalist 
FlowerPhoto: Tom Field, CC BY 4.0, from iNaturalist 
FruitPhoto: Sandy Wolkenberg, CC BY 4.0, from iNaturalist 
FruitPhoto: cappycollins, CC BY 4.0, from iNaturalist 
FruitPhoto: Carrie Seltzer, CC BY 4.0, from iNaturalist 
FruitPhoto: Sandy Wolkenberg, CC BY 4.0, from iNaturalist 
Photo: R. A. Nonenmacher, CC BY-SA 4.0, from Wikimedia Commons 
Photo: Ryan Hodnett, CC BY-SA 4.0, from Wikimedia Commons 
Photo: Romain Lemoine, CC0, from Wikimedia Commons 
Photo: June Mire, CC0, from iNaturalist
More in Juglans
- Persian walnutJuglans regiaJuglandaceae
- ButternutJuglans cinereaJuglandaceae
- Manchurian walnutJuglans mandshuricaJuglandaceae
- Southern California black walnutJuglans californicaJuglandaceae
- Juglans australisJuglandaceae
- Iron walnutJuglans sigillataJuglandaceae
- Arizona walnutJuglans majorJuglandaceae
- Little walnutJuglans microcarpaJuglandaceae
- Andean walnutJuglans neotropicaJuglandaceae
- Bolivian walnutJuglans bolivianaJuglandaceae
- Juglans pyriformisJuglandaceae
- Northern California black walnutJuglans hindsiiJuglandaceae
Sources: classification, synonyms from World Flora Online Plant List (2026-06, CC0 1.0); common names, popularity from Wikidata (2026-10-26, CC0 1.0); common names, US characteristics from USDA PLANTS Database (2025-05-29, CC0 1.0). About our plant data.