Seeds/Plants which can withstand flood water

I read in newspaper today that there are rice seeds which jerminate in flood water and the plant comes out to live in that water. The plant can survive in that water for 25 days. If the water still persists the plant starts decaying in parts and finally the inner core would remain. When the water recedes later on the plant grows back to life ! I find it amazing !

There are efforts being made to protect these seed varities in Northern Karntaka. These seeds can get exitinct if they are not preserved due to invasion of seeds from the multi-national companies.