''Cercis siliquastrum'', commonly known as the Judas tree or Judas-tree,
is a small
deciduous
In the fields of horticulture and botany, the term deciduous () means "falling off at maturity" and "tending to fall off", in reference to trees and shrubs that seasonally shed Leaf, leaves, usually in the autumn; to the shedding of petals, aft ...
species of
redbud
''Cercis'' is a genus of about 10 species in the subfamily Cercidoideae of the pea family Fabaceae. It contains small deciduous trees or large shrubs commonly known as redbuds in the USA. They are characterised by simple, rounded to heart-sha ...
in the
flowering plant
Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (). The term angiosperm is derived from the Ancient Greek, Greek words (; 'container, vessel') and (; 'seed'), meaning that the seeds are enclosed with ...
family
Fabaceae
Fabaceae () or Leguminosae,[International Code of Nomen ...](_blank)
which is noted for its prolific display of deep pink flowers in spring. It is native to
Southern Europe
Southern Europe is also known as Mediterranean Europe, as its geography is marked by the Mediterranean Sea. Definitions of southern Europe include some or all of these countries and regions: Albania, Andorra, Bosnia and Herzegovina, Bulgaria, C ...
and
Western Asia
West Asia (also called Western Asia or Southwest Asia) is the westernmost region of Asia. As defined by most academics, UN bodies and other institutions, the subregion consists of Anatolia, the Arabian Peninsula, Iran, Mesopotamia, the Armenian ...
.
Description

This species forms a small tree up to 12 m (39 ft) in height and 10 m (32 ft) in width.
The deep pink flowers are produced on year-old or older growth,
including the trunk, in spring. They have
five free petals and fused sepals, a flower shape typical of much of the pea family (
Fabaceae
Fabaceae () or Leguminosae,[International Code of Nomen ...](_blank)
). The leaves appear shortly after the first flowers emerge. These are
cordate
Cordate is an adjective meaning ' heart-shaped' and is most typically used for:
* Cordate (leaf shape), in plants
* Cordate axe, a prehistoric stone tool
See also
* Chordate
A chordate ( ) is a bilaterian animal belonging to the phyl ...
with a blunt apex and occasionally have a shallow notch at the tip. The tree produces long flat pods that hang vertically. The flowers are edible and reportedly have a sweet and tart taste.
[
]
Taxonomy
The species was first described by Linnaeus
Carl Linnaeus (23 May 1707 – 10 January 1778), also known after ennoblement in 1761 as Carl von Linné,#Blunt, Blunt (2004), p. 171. was a Swedish biologist and physician who formalised binomial nomenclature, the modern system of naming o ...
in 1753 and he gave it the specific epithet of ''siliquastrum'' which is derived from the Latin
Latin ( or ) is a classical language belonging to the Italic languages, Italic branch of the Indo-European languages. Latin was originally spoken by the Latins (Italic tribe), Latins in Latium (now known as Lazio), the lower Tiber area aroun ...
word ''siliqua'', meaning "pod". The generic name comes from the Greek
Greek may refer to:
Anything of, from, or related to Greece, a country in Southern Europe:
*Greeks, an ethnic group
*Greek language, a branch of the Indo-European language family
**Proto-Greek language, the assumed last common ancestor of all kno ...
''kerkis'', a " shuttle", which refers to the resemblance shown to this weaver's tool by the flat, woody seedpods.
There are several varieties
Variety may refer to:
Arts and entertainment Entertainment formats
* Variety (radio)
* Variety show, in theater and television
Films
* ''Variety'' (1925 film), a German silent film directed by Ewald Andre Dupont
* ''Variety'' (1935 film), ...
and subspecies
In Taxonomy (biology), biological classification, subspecies (: subspecies) is a rank below species, used for populations that live in different areas and vary in size, shape, or other physical characteristics (Morphology (biology), morpholog ...
including:-
*var. ''hebecarpa'' Bornm.
*nothosubsp. ''yaltikirii'' (Ponert) Govaerts
*var. ''siliquastrum''
*var. ''alba'' Weston
Distribution and ecological aspects
The flowers are pollinated by bees, which are attracted by nectar. Pollen from the protruding stamen
The stamen (: stamina or stamens) is a part consisting of the male reproductive organs of a flower. Collectively, the stamens form the androecium., p. 10
Morphology and terminology
A stamen typically consists of a stalk called the filament ...
s is deposited on the bee's body and carried to another flower's stigma.
In Israel the tree has a status of a protected plant.
British journalist Francis McCullagh reported seeing "innumerable" flowering specimens of this tree in Yildiz Park in Istanbul in April 1909.
Cultivation
The species prefers deep, well-drained soils and a position in full sun or partial shade.[
Cultivars include:]
*'Afghan Deep Purple'
*'Alba' - white flowers
*'Bodnant'
*'Carnea'
*'Fructa Rubra'
*'Penduliflora'
*'Rubra' - dark pink-purple flowers
*'Sterilis'
*'Variegata'
*'White Swan'
The cultivar 'Bodnant' has gained the Royal Horticultural Society
The Royal Horticultural Society (RHS), founded in 1804 as the Horticultural Society of London, is the UK's leading gardening charity.
The RHS promotes horticulture through its five gardens at Wisley (Surrey), Hyde Hall (Essex), Harlow Carr ...
's Award of Garden Merit
The Award of Garden Merit (AGM) is a long-established award for plants by the British Royal Horticultural Society (RHS). It is based on assessment of the plants' performance under UK growing conditions.
It includes the full range of cultivated p ...
. (confirmed 2017).
The tree is susceptible to leafhoppers
Leafhopper is the common name for any species from the family Cicadellidae: based on the type genus ''Cicadella''. These minute insects, colloquially known as hoppers, are plant feeders that suck plant sap from grass, shrubs, or trees. Their hind ...
, scale insects
Scale insects are small insects of the order Hemiptera, suborder Sternorrhyncha. Of dramatically variable appearance and extreme sexual dimorphism, they comprise the infraorder Coccomorpha which is considered a more convenient grouping than the ...
and psyllids
Psyllidae, the jumping plant lice or psyllids, are a Family (biology), family of small plant-feeding insects that tend to be very host-specific, i.e. each plant-louse species only feeds on one plant species (monophagous) or feeds on a few closel ...
(specifically '' Cacopsylla pulchella'') as well as diseases including canker
A plant canker is a small area of dead tissue, which grows slowly, often over years. Some cankers are of only minor consequence, but others are ultimately lethal and therefore can have major economic implications for agriculture and horticultur ...
, coral spot
''Nectria cinnabarina'', also known as coral spot, is a plant pathogen that causes cankers on broadleaf trees. This disease is polycyclic and infects trees in the cool temperate regions of the Northern Hemisphere. ''N. cinnabarina'' is typicall ...
and verticillium wilt
Verticillium wilt is a wilt disease affecting over 350 species of eudicot plants. It is caused by six species of '' Verticillium'' fungi: ''V. dahliae'', ''V. albo-atrum'', ''V. longisporum'', ''V. nubilum'', ''V. theobr ...
.
Propagation is by seed, cuttings or budding.
The species produces hard wood with an attractive grain. It is used in veneers and polishes well.[
]
Culture
There is a myth that Judas Iscariot
Judas Iscariot (; ; died AD) was, according to Christianity's four canonical gospels, one of the original Twelve Apostles of Jesus Christ. Judas betrayed Jesus to the Sanhedrin in the Garden of Gethsemane, in exchange for thirty pieces of sil ...
hanged himself from a tree of this species, causing its white flowers to turn red. This belief is related to the common name "Judas tree", which is possibly a corrupted derivation from the French common name, ''Arbre de Judée'', meaning ''tree of Judea
Judea or Judaea (; ; , ; ) is a mountainous region of the Levant. Traditionally dominated by the city of Jerusalem, it is now part of Palestine and Israel. The name's usage is historic, having been used in antiquity and still into the pres ...
'', referring to the hilly regions of that country where the tree used to be common. Another possible source for the vernacular name is the fact that the flowers and seedpods can dangle directly from the trunk in a way reminiscent of Judas's possible method of suicide.[
A sermon illustration on the deadly effects of succumbing to temptation refers to a false idea that the Judas tree killed bees drawn to it: "Dr. Cuyler forcibly illustrates this by reference to the Judas tree. The blossoms appear before the leaves, and they are of a brilliant crimson. The flaming beauty of the flowers attracts innumerable insects; and the wandering bee is drawn after it to gather honey. But every bee which alights upon the blossom, imbibes a fatal opiate, and drops dead from among the crimson flowers to the earth."
Judas trees in ]Istanbul
Istanbul is the List of largest cities and towns in Turkey, largest city in Turkey, constituting the country's economic, cultural, and historical heart. With Demographics of Istanbul, a population over , it is home to 18% of the Demographics ...
, Turkey, especially the Bosphorus
The Bosporus or Bosphorus Strait ( ; , colloquially ) is a natural strait and an internationally significant waterway located in Istanbul, Turkey. The Bosporus connects the Black Sea to the Sea of Marmara and forms one of the continental b ...
, give their distinctive purple color in spring. It is one of the important images of Byzantium and Christianity. The purple of the Judas tree flower resembles the color used in the clothes of Byzantine rulers. It was a sign of wealth and power, as it was the most difficult color to be produced naturally. Except for the emperor, no one could wear the color purple.
Judas trees have been the symbol of Bursa
Bursa () is a city in northwestern Turkey and the administrative center of Bursa Province. The fourth-most populous city in Turkey and second-most populous in the Marmara Region, Bursa is one of the industrial centers of the country. Most of ...
, Turkey for centuries. "Erguvan (redbud) festivals" started to be organized since the 14th century because Emir Sultan, one of the Muslim Anatolian saints, son-in-law of the Ottoman Empire
The Ottoman Empire (), also called the Turkish Empire, was an empire, imperial realm that controlled much of Southeast Europe, West Asia, and North Africa from the 14th to early 20th centuries; it also controlled parts of southeastern Centr ...
sultan Bayezid I
Bayezid I (; ), also known as Bayezid the Thunderbolt (; ; – 8 March 1403), was the sultan of the Ottoman Empire from 1389 to 1402. He adopted the title of ''Sultan-i Rûm'', ''Rûm'' being the Arabic name for the Eastern Roman Empire. In 139 ...
, met with his followers in Bursa every year during the Judas tree blooming season, continued as a tradition until the 19th century due to their positive effects on the city's economy. There is a present effort to revive these festivities.
Etymology
The belief that Judas hanged himself on ''Cercis siliquastrum'' tree, leading its flowers to turn to a blush colour, likely originated from a translation error. ''Cercis'' trees, common in the Middle East
The Middle East (term originally coined in English language) is a geopolitical region encompassing the Arabian Peninsula, the Levant, Turkey, Egypt, Iran, and Iraq.
The term came into widespread usage by the United Kingdom and western Eur ...
, were referred to as 'arbre de Judee' in French, meaning Judea
Judea or Judaea (; ; , ; ) is a mountainous region of the Levant. Traditionally dominated by the city of Jerusalem, it is now part of Palestine and Israel. The name's usage is historic, having been used in antiquity and still into the pres ...
's tree. Over time, this may have been corrupted to 'Judas tree'. The tree also has alternative names such as love tree or redbud, with its Latin name, ''Cercis'', derived from the Greek word for a weaver's shuttle, describing the appearance of its seed pods. The story about Judas and the blushing redbud appears to be a result of linguistic evolution and cultural folklore.
Traditional medicine
The Judas tree is referred to as a traditional medicinal plant in the Middle East
The Middle East (term originally coined in English language) is a geopolitical region encompassing the Arabian Peninsula, the Levant, Turkey, Egypt, Iran, and Iraq.
The term came into widespread usage by the United Kingdom and western Eur ...
.[European Journal of Integrative Medicine. https://doi.org/10.1016/j.eujim.2019.03.005]
References
Further reading
International Legume Database & Information Service (ILDIS): ''Cercis siliquastrum''
The Royal Horticultural Society : ''Circus siliquastrum''
Wildflowers of Israel : ''Judas tree''
*
{{Taxonbar, from=Q29488
siliquastrum
Flora of Lebanon
Flora of Palestine (region)
Judas Iscariot
Plants described in 1753
Taxa named by Carl Linnaeus
Flora of the Mediterranean basin