by Stephen Mifsud
   28 Jan 2020      ()
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Juglans regia   (Walnut)

Juglans regia  (JUGLANDACEAE.) 
Images for this profile are taken from the Maltese Islands at or after year 2000.

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Nomenclature and Basic Information Images
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Profile Date Oct-2010 (last update: 12-Jan-2019)
Citation for this page Mifsud, S. (Oct-2010) Juglans regia retrieved from on 2020-Jan-28

Nomenclature and Basic Information

Species name :

Juglans regiaL.
Published in L., Sp. Pl. 997 (1753)

Synonyms :
(basionym or principal syn.)

Juglans fallax
Full list of synonyms : [Euro+Med] [PlantList] [IPNI] [POWO] [Catalogue of Life ]

Plant Family :

Juglandaceae A. Rich ex Kunth (The Walnut Family)
2 species from the Juglandaceae family are recorded from the Maltese Islands.

English name(s) :


Maltese name(s) :

Ġewża, Siġra tal-ġewż

Status for Malta :

Introduced species for horticulture (flowering plants) or agriculture (herbs or fruiting trees) usually within the last 30-150 years and persist for long after their original location or site is abandoned. They do not widespread but usually remain as a single tree or a very localised population.

Frequency :

Data not available - casual in the wild as a garden/field escape

Growth form :

Raunkiaer lifeform [info]: Macro-Phanerophyte (high trees usually over 10m )
Germination [info]: Dicotyledon

Legal Protection [link]:

Not Protected by Law (LN200/2011 or LN311/2006)

Red List (1989) :

Not listed in the Red Data Book of the Maltese Islands

Flowering Time :


Colour of Flowers:


Species Description and Distribution

Habitat in Europe:

Data will be available in the next update of this website.

Preferred habitat in Malta:

Data will be available in the next update of this website.

Botanical Description:

Tree up to 30 m; bark grey, smooth, eventually becoming fissured but not scaling. Leaflets 7-9, 6-15 cm, obovate or elliptical, acute or acuminate, glabrescent. Male catkins 5-15 cm. Fruit 4-5 cm, subglobose, green, gland-dotted, glabrous; stone ovoid, acute, wrinkled, easily splitting.

Distributional range:

Possibly native in Greece and elsewhere in the Balkan peninsula, widely cultivated for its fruits (Walnuts) and timber and locally naturalized in S. & W. Europe.

Distributional map in Europe
and the Mediterranean region (2018):

Occurrences in Europe.
(from Flora Europaea pre year 1993):

Albania, Austria and Liechtenstein, Bulgaria, Crete, Greece, Italy (excl. Sicily and Sardignia), ex-Jugoslavia, Romania, Sicily and/or Malta, Introduced in  Britain (excl. Northern Ireland and Channel islands), Corse, France (incl. Monaco and Channel Islands but excluding Corse), Switzerland, Spain (incl. Andorra but excl. the Balaerics), Hungary, Portugal, Russia and former USSR, Sardinia, Doubtful in Turkey (European part)

Occurrences in Europe and the Mediterranean region.
(Euro+Med Checklist, 2017) - Country codes

Ab(A) Al Ar dAu(A L) BH Bu Cg Ct Ge Gg(A) Gr Le Mk Rm Sr Tu(A E) [Ab(A) nAE Al Au(A L) nBe(B L) Bl dBl(N) nBr nBu Ca(C) nCo nCr cCs Ct Cy aDa Es nGa(C) Ga(F) nGe nGg nHb nHe Ho cHs nHs(S) Hu nIt cLt Lu nMk cMo No nPo Rf(C) cRf(K) cRm nSa nSi(S) cSk nSl aSu ?Tu(E) Uk(K) cUk(U)]

Images (5 images)
   Juglans regia   -   Image Code: JGLRE-0.
   Juglans regia   -   Image Code: JGLRE-1.
   Juglans regia   -   Image Code: JGLRE-2.
   Juglans regia   -   Image Code: JGLRE-3.
   Juglans regia   -   Image Code: JGLRE-4.

Links & Further info

Google Web

Google Images

Yahoo Web

Yahoo Images




Med Checklist

Cat. of Life



The Plant List


Vienna Virt. Hb.





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