The next may be human.
In one of the worst hot spots around in Tokyo, Kashiwa, Chiba, deformed roses are observed many times.
The owner assumes it might be tap water contaminated,if it has something to do with radiation. No extra fertilizer is given.(exactly the same condition as every year.)
Here is the 2 of the detailed cases.
FYI.
Normal Pierre de Ronsard.
Deformed rose in Three mile island.
Case 1
4/21/2011
4/29/2011
5/1/2011
5/6/2011
5/11/2011
5/13/2011
5/14/2011
The “first” rose is dying and the second one is blooming.
5/16/2011
5/15/2011
The second rose had two heads.
Case 2&
4/21/2011
Three buds in one rose.
5/6/2011
5/14/2011
(Source)
This is the one of other owner.
The owner says, he/she has been growing rose but this has never happened.
(Source)