Globally near threatened (NT) (Source: IUCN Red List)

Classification
Within iNaturalist.org

All Names

  • French
    • Marronier
  • English
    • Horse-Chestnut
    • Horse chestnut
  • Scientific Names
    • Aesculus hippocastanum
  • Spanish
    • Castaño de Indias
  • Vermont Flora Codes
    • AESHIP
  • German
    • Gewöhnliche Rosskastanie
    • Gemeine Rosskastanie
    • Weiße Rosskastanie

Guide Colors

Extras

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Recent observations

Photos / Sounds

Square

What

Castaño de Indias Aesculus hippocastanum

Observer

carlos2

Date

February 28, 2015

Photos / Sounds

16206557657 0c8b746d7e s

What

Horse-Chestnut Aesculus hippocastanum

Observer

jon_sullivan

Date

December 30, 2014 11:45 AM NZDT

Description

I photographed representatives of all the woody species I could find wild seedlings of growing under the big climbing Cupressus near the Peacock fountain.

Photos / Sounds

Observer

microm

Date

January 25, 2015

Description

This tree is called marronier or marronier d'Inde in french. The second picture shows the fruit (marron) germinating.

Photos / Sounds

Observer

cesarpollo5

Date

November 30, 2014

Tags

Photos / Sounds

Square

What

Horse-Chestnut Aesculus hippocastanum

Observer

suemcgaw

Date

December 30, 2014

Photos / Sounds

What

Horse-Chestnut Aesculus hippocastanum

Observer

jon_sullivan

Date

October 18, 2014 06:13 PM NZDT

Description

Presumably cultivated.

Photos / Sounds

What

Horse-Chestnut Aesculus hippocastanum

Observer

ljhnz

Date

October 29, 2014 09:28 AM NZDT

Description

A large deciduous tree...taller than a single story house. These trees line the street on the main road out of Winton in Southland, New Zealand.

Photos / Sounds

What

Horse chestnut Aesculus hippocastanum

Observer

john_barkla

Date

October 27, 2014

Description

Cultivated street tree

Photos / Sounds

What

Horse chestnut Aesculus hippocastanum

Observer

dcar7

Date

October 26, 2014 05:13 PM EDT

Place

(Somewhere...)

Description

30ft tall

Photos / Sounds

15432317897 01c4594d1c s

What

Horse-Chestnut Aesculus hippocastanum

Observer

jon_sullivan

Date

October 17, 2014 05:44 PM NZDT

Photos / Sounds

15613922005 9c915f3e61 s

What

Horse-Chestnut Aesculus hippocastanum

Observer

jon_sullivan

Date

October 24, 2014 03:34 PM NZDT

Description

In full bloom now.

Photos / Sounds

What

Horse-Chestnut Aesculus hippocastanum

Observer

nzwide

Date

October 21, 2014
View all observations

Description from Wikipedia

Aesculus hippocastanum is a large deciduous, synoecious tree, commonly known as horse-chestnut or conker tree.

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Conservation Summary

  • Globally
    near threatened (NT) (Source: IUCN Red List)
    The Horse Chestnut (Aesculus hippocastanum) is a major amenity tree native to Greece and the central Balkan peninsula and planted across Europe. It has been significantly damaged by the leaf miner moth Cameraria ohridella across its entire native and introduced range; the extent of decline caused by infestation is thought to be insignificant, however, compared to the multiple threats the Pindus Mountain mixed forest ecoregion is facing. The species is threatened or likely to be extinct across most of its native range: it is Endangered in Bulgaria (Petrova and Vladimirov 2009, Bulgarian Academy of Sciences and Ministry of Environment and Water 2011), where it remains in two locations, and in Greece, where the declining population is estimated at only 259-407+ trees; it is probably Extinct in Albania. The status of the population in Macedonia is unknown, but given the small range in the country, it is likely to be small. The species occurs in protected areas in Greece and Bulgaria, including national parks/reserves and Natura 2000 sites, although mining, deforestation, tourism development and other threats still impact some national parks. Given the widespread and varied threats across its native range, the population is almost certainly suffering a continuing decline, though the overall decline has not been quantified. Although the total population size across its native range has not been estimated, it is unlikely to consist of more than 10,000 mature individuals and may even be fewer than 2,500 mature individuals. Based on the subpopulation structure in Greece and the ongoing threats across its range, all wild subpopulations are likely smaller than 1,000 individuals. At the European level, Aesculus hippocastanum is therefore assessed as Vulnerable C2a(i). It also qualifies for Vulnerable C2a(i) in its EU 27 range (Bulgaria and Greece), where the majority of the native population is found. There is likely to be immigration of propagules into its native range as it has been introduced throughout Europe, so the original category is downlisted to Near Threatened in both Europe and the EU 27. Recommended conservation measures include controlling the Cameraria ochridella leaf miner, enforcement of protection regimes in nature reserves, regulating human impacts on its habitats, and ex situ cultivation using genetic material from remaining natural populations. Research is needed on the genetic similarity between native and introduced subpopulations, to determine if introduced subpopulations likely to be the source of propagules may indeed help augment declining native populations.
    No range data available.