Walnuts
Juglans
Walnut trees are any species of tree in the plant genus Juglans, the type genus of the family Juglandaceae, the seeds of which are referred to as walnuts. All species are deciduous trees, 10–40 metres (33–131 ft) tall, with pinnate leaves 200–900 millimetres (7.9–35.4 in), with 5–25 leaflets; the shoots have chambered pith, a character shared with the wingnuts (Pterocarya), but not the hickories (Carya) in the same family.
26 branches of this genus, most-observed first
eastern black walnut
speciesJuglans nigra
Persian walnut
speciesJuglans regia
Butternut
speciesJuglans cinerea
Southern California Walnut
speciesJuglans californica
northern California black walnut
speciesJuglans hindsii
Manchurian walnut
speciesJuglans mandshurica
Arizona black walnut
speciesJuglans major
Andean Walnut
speciesJuglans neotropica
Japanese walnut
speciesJuglans ailantifolia
Little Walnut
speciesJuglans microcarpa
Mexican walnut
speciesJuglans mollis
Juglans australis
speciesJuglans australis
Bixby's walnut
hybridJuglans × bixbyi
Juglans olanchana
speciesJuglans olanchana
Juglans pyriformis
speciesJuglans pyriformis
intermediate walnut
hybridJuglans × intermedia
Paradox hybrid walnut
hybridJuglans hindsii × regia
West Indian Walnut
speciesJuglans jamaicensis
Ma walnut
speciesJuglans hopeiensis
Juglans boliviana
speciesJuglans boliviana
Juglans mexicana
speciesJuglans mexicana
iron walnut
speciesJuglans sigillata
Juglans venezuelensis
speciesJuglans venezuelensis
Juglans hirsuta
speciesJuglans hirsuta
Juglans steyermarkii
speciesJuglans steyermarkii
Juglans soratensis
speciesJuglans soratensis
Where it lives
Recorded sightings
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geo-referenced records in GBIF, from museums, herbaria and field observers.
Drag the globe to turn it. Dots are where records exist, not a range map; darker means more records.
In the old herbals & bestiaries
The Natural History of Carolina, Florida and the Bahama Islands, Vol. 1
Mark Catesby · 1777 · p.218
Commentaries on the Six Books of Pedanius Dioscorides on Medical Matter
Pietro Andrea Mattioli · 1565 · p.452
Notable Commentaries on the History of Plants
Leonhart Fuchs · 1549 · p.411
A voyage to the islands Madera Barbados Jamaica Vol. 1
Hans Sloane · 1707 · p.521
Herbarium Portatile, Oder Behendes Kräuter- und Gewächs-Buch: Darinn nicht allein 1363. so wol Einheimische als Außländndische Kräuter mit Lateinisch und Deutscher Benennung abgebildet, sondern auch die meisten, so in der Medicin gebräuchlich, kürtzlich erkläret werden
Panckow, Thomas · 1656 · p.347
In the stacks
Searching the stacks…
Every page naming Juglans in the Biodiversity Heritage Library →
This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 54495.