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The plant collections of the Arboretum de la Sédelle

The Arboretum de la Sédelle has a remarkable collection of maples (Acer) certified by the C.C.V.S. (Conservancy for Specialised Plant Collections) of the French National Horticultural Society. The collection consists of no less than 130 taxa: 90 species and sub-species and about 40 horticultural cultivars.

Other taxa well represented at the arboretum include  oak (Quercus) - 36 species/cultivars,  viburnum (Viburnum) - 27 species/cultivars, dogwood (Cornus) - 23 species/cultivars,  spindle berry (Euonymus) - 19 species/cultivars, linden (Tilia) - 14 species and deciduous camellia (Stewartia) - 7 species.

The plant collections at the arboretum are limited in order to maintain open spaces, indispensable for observing the landscape. The planting of species from around the world is done with respect for the indigenous flora. Not less than 400 species of trees and shrubs from 4 continents offer the visitor a sensual experience, plunging one into a magical world of marvellous plants.  
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MAPLE 
(Acer)

Maples make up about a quarter of the arboretum's plant collection and the arboretum has become a conservancy for species and sub species of maple, a member of the Sapindaceae family. There  are approximately 128 species of maple world wide most of which are native to Asia with a number also present in Europe , North Africa and North America.  The humus rich moist soils of the arboretum are ideal for their cultivation. Their structure, their foliage at bud-break or in full autumn coloration, their delicate flowers, their colourful fructification and their peeling or marbled bark all contribute to the publics infatuation with this genus.

OAK
​(Quercus)

In the Fagaceae family the genus Quercus consists of more than 400 species from the temperate and tropical zones of the Northern hemisphere. At the arboretum we have 38 species originating from Northern America, where this genus is well represented, as well as species from China, Korea and Japan. Oaks may develop into majestic trees or scrubby bushes depending on the climate and their geographical situation. The English oak (Quercus robur) is common at the arboretum and is one of our oldest trees.
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VIBURNUM (Viburnum)

 These shrubs belong to the Adoxaceae family and consist of 160 species. The flowers are produced in corymbs from 5 to 15cm across. Each small flower is white to cream or pink,  with five petals and strongly fragrant in some species.  The fruit is a somewhat flattened    brightly coloured drupe, varying from red, to orange, violet, blue or black. The leaves are opposite and simple. Cool temperate species are deciduous often with magnificent autumn colours, while most of the warm temperate species are evergreen.  Viburnum opulus, commonly known as Guelder rose, is an indigenous specie that grows along the Sedelle River.
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Acer palmatum "Linearilobum"
acer.pdf
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DOGWOOD
(Cornus)

Essentially represented by shrubs and some small trees, this genus of the Cornaceae family is well known for its  decorative colourful bark.  Of the 40 to 60 species of Cornus the Asian and American dogwoods are the most appreciated in the gardening world. The flowering dogwoods Cornus kousa from China and Cornus florida from the USA are the jewels of spring with their showy flowers. At the arboretum we have two indigenous species Cornus mas, a winter flowering species that produces large berries rich in vitamin C, and Cornus officinalis with its light- coloured bark.
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Cornus florida "Rubra"
cornus.pdf
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LIQUIDAMABAR
(Liquidambar)

 This    genus,   member     of     the  Hamamelidaceae family is made up of only 4 species; 1 from North America, 1 from Asia Minor and 2 from China.  The name of this species comes from the English "liquid amber" referring to the tree's  amber coloured sap. This balsamic sap, known as storax, is used in both the pharmaceutical  and perfume industries. The American species, Liquidambar styraciflua (American sweet gum) has naturalised in the Sologne region of France where it appreciates the moist soil essential to its development. All 4 species, present at the Arboretum, are appreciated for their spectacular autumn foliage .
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Liquidambar styraciflua
liquidambar.pdf
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Quercus palustris
quercus.pdf
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LINDEN
(Tilia)

The genus Tilia is made up of approximately 30 species of which 3 are indigenous to Europe: small leafed linden (Tilia cordata), large leafed linden (Tilia platyphyllos) and Dutch linden (Tilia X vulgaris) also known as Tilia intermedia, a natural hybrid between T. cordata and T. platyphyllos. They are all large trees growing up to 50 meters with an ovoid crown. The hermaphroditic flowers varying from white to yellow are strongly scented and melliferous. A forest tree with soft wood, lindens are found in the temperate regions of the northern hemisphere. The indigenous species, Tilia cordata, grows naturally along the Sedelle River.
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Tilia insularis
tilia.pdf
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SUMAC
(Rhus)

Rhus is a genus of trees, shrubs and creepers of the Anacardaceae family of which the cashew nut is the most well-known species. The genus consists of more than 120 species present in the warm and temperate regions of both the northern and southern hemisphere. Often rich in tannin the exuberant foliage of this genus reminds one of the tropics. The large deciduous compound leaves of the norther species vary in autumn colour from yellow through to purple.



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Rhus trichocarpa
rhus.pdf
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Viburnum lantanoides
viburnum.pdf
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SPINDLE BERRY 
(Euonymus)

These shrubs or small trees belong to the Celastraceae family. A genus easily identifiable by its fructification of pendulous capsules, often brightly coloured.  The numerous species (over 120) include many marvels for the forest garden. The European spindle berry, Euonymus europaea is one of the most spectacular not only for its bright pink fruit but also for its autumn foliage. Common in the arboretum the leaves and fruit of this species are poisonous to man. The wood is used to make top quality drawing charcoal hence the French common name "fusain".
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Picture
Euonymus hamiltonianus
euonymus.pdf
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DECIDUOUS CAMELLIA
(Stewartia)

Stewartia is a genus  of 10 species from the Theaceae family, of which  the Camélia (tea)  is the most well known genus. Most of the species originate from China, Korea, Japan, Laos and Thailand with 2 species from the south eastern region of northern America. They are deciduous trees or shrubs with a distinctive flaky yellow/orange bark. The large white flowers appear towards the end of summer. This is a genus less known to gardeners but well worth cultivating.



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Picture
Stewartia pseudocamelia
stewartia.pdf
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