The Chestnut Tree: A Timeless Giant

Walking (virtually) under the shadow of the Fagaceae forests

Distribution map of chestnut (2021-06-17) by Donatella MagriMuseo Erbario Sapienza

History of Chestnuts

It is a species cultivated since ancient times. Many fossil findings show that the chestnut tree is spontaneous in the Mediterranean  regions up to the Caucasus. 
Up to the Bronze Age it spread mainly through Turkey, Greece and Italy. In Roman times, through Europe.

Castanea sativa Mill. (1979-07-01) by Anzalone B.Museo Erbario Sapienza

Forest of chestnuts (2021-06-16) by Marta LatiniMuseo Erbario Sapienza

How to recognize it? Its shape

It is a deciduous tree up to 30 metres tall, with a very large crown. The bark is greyish-brown and presents longitudinal grooves with age.

Castanea sativa Mill. (1993-07-01) by Anzalone B.Museo Erbario Sapienza

How to recognize it? Leaves

The leaves, 10-25 cm long and 5-8 cm wide, alternate, with dark green lamina on the upper page and lanceolate shape, with acute apex. 
The edge of the leaf is serrated and the raised veins are pinnated (arranged like the barbs of a bird feather).

Castanea sativa Mill. (2021-06-16) by Mauro IberiteMuseo Erbario Sapienza

How to recognize it? Its flowers

The male flowers, gathered in showy inflorescences, produce a lot of nectar and attract insects such as bees, bumblebees and beetles. The female inflorescences have 2-3 flowers each enclosed in a shell that, when mature, turns into a spiny hedgehog with 2/3 chestnuts.

Forest of chestnuts (2021-06-16) by Marta LatiniMuseo Erbario Sapienza

Where to find a chestnut tree

It is very common in Lazio (Italy), especially in hilly, submontane or mountainous areas, up to 1200m above sea level. 
It loves the sun, fears the rigours of winter and the excessive heat of summer, prefers sufficiently humid environments, fresh, deep and acidic soils.

Castanea sativa Mill. (1993-10-01) by Anzalone B.Museo Erbario Sapienza

Curiosities...

Its fruits are tasty and nutritious and its wood is semi-hard, workable and durable.

It is a very long-lived plant, which can live up to 1,000 years.

Castanea sativa Mill. (1972-05-31) by Anzalone B.Museo Erbario Sapienza

The king of chestnut trees

Famous in Italy is the Chestnut tree of the hundred horses in Sicily, on the slopes of Etna.

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It is one of the oldest specimens in Europe, whose trunk circumference and height measure 22 meters each.

The Sapienza Herbarium Museum holds over one million specimens and each one tells an incredible story 

Credits: Story

Texts and images by the staff of the Herbarium Museum, Sapienza University of Rome 
Layout by Caterina Giovinazzo and Ilaria De Benedictis

Credits: All media
The story featured may in some cases have been created by an independent third party and may not always represent the views of the institutions, listed below, who have supplied the content.
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