Wikipedia
Hibakujumoku (from – "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. The initial radiation level at the hypocenter was approximately 240 Gy. 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. The rate of regeneration differed by species. Active regeneration was shown by broad-leaved trees. Approximately 170 trees that grew in Hiroshima in 2011 had actually been there prior to the bombing. The oleander was designated the official flower of Hiroshima for its remarkable vitality.
Hibakujumoku species are listed in the UNITAR database, 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.