Hibakujumoku
Hibakujumoku (from Japanese: 被爆樹木 – "survivor tree", also known as A-bombed tree in English) is a Japanese name for a tree that survived the atomic bombing of Hiroshima in 1945. The heat emitted by the explosion in Hiroshima within the first three seconds at a distance of three kilometres from the hypocenter was about 40 times greater than that from the Sun.[1] The initial radiation level at the hypocenter was approximately 240 Gy.[1] According to Hiroshima and Nagasaki: The Physical, Medical, and Social Effects of the Atomic Bombings, plants suffered damage only in the portions exposed aboveground, while portions underground were not directly damaged.[2] The rate of regeneration differed by species. Active regeneration was shown by broad-leaved trees.[2] Approximately 170 trees that grew in Hiroshima in 2011 had actually been there prior to the bombing.[3] The oleander was designated the official flower of Hiroshima for its remarkable vitality.[2]
Hibakujumoku species are listed in the UNITAR database,[4] shown below (combined with data from Hiroshima and Nagasaki: The Physical, Medical, and Social Effects of the Atomic Bombings).
| Common name | Binomial name |
|---|---|
| Weeping willow | Salix babylonica |
| Black locust | Robinia pseudoacacia |
| Chinaberry | Melia azedarach var. japonica |
| Fig tree | Ficus sp. |
| Bamboo | Bambuseae tribe |
| Azalea | Rhododendron genus |
| Hemp palm | Trachycarpus fortunei |
| Oleander | Nerium indicum |
| Japanese spindle | Euonymus japonicus |
| Kurogane holly | Ilex rotunda |
| Japanese aralia | Fatsia japonica |
| Nettle tree | Celtis sinensis var. japonica |
| Camphor tree | Cinnamomum camphora |
| Silverthorn | Elaeagnus pungens |
| Japanese persimmon | Diospyros kaki |
| Eucalypt | Eucalyptus melliodora |
| Giant pussy willow | Salix chaenomeloides |
| Southern catalpa | Catalpa bignonioides |
| Sago palm | Cycas revoluta |
| Tree peony | Paeonia suffruticosa |
| Shirodamo | Neolitsea sericea |
| Cherry tree | Prunus × yedoensis |
| Crape myrtle | Lagerstroemia indica |
| Ginkgo | Ginkgo biloba |
| Oriental plane | Platanus orientalis |
| Chinese parasol tree | Firmiana simplex |
| Japanese black pine | Pinus thunbergii |
| Muku tree | Aphananthe aspera |
| Japanese hackberry | Celtis sinensis var. japonica |
| Jujube | Ziziphus jujuba |
| Japanese flowering apricot tree | Prunus mume var. purpurea |
| Amanatsu | Citrus natsudaidai |
| Tabunoki | Persea thunbergii |
| Bohdi tree | Tilia miqueliana |
| Japanese camellia | Camellia japonica |
| Japanese quince | Chaenomeles speciosa |
| Chinese juniper | Juniperus chinensis |
| Crinum lily | Crinum sp. |
References
- 1 2 Frank Barnaby, Douglas Holdstock, eds. (2014). Hiroshima and Nagasaki: Restrospect and Prospect. Routledge. ISBN 1135209936.
- 1 2 3 Peter Del Tredici. "Hibaku Trees of Hiroshima" (PDF). Arnold Arboretum. Retrieved 20 May 2014.
- ↑ "Green Legacy Hiroshima: Spreading Seeds Of Peace Across The World". ANT-Hiroshima News. Retrieved 20 May 2014.
- ↑ "Database of Hibaku Jumoku ? Atomic-Bombed Trees of Hiroshima" (PDF). UNITAR. Retrieved 20 May 2014.
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