Rabbit Milkweed is the best feed food for rabbits. That is how its name from I guess.
It looks quite similar to Dandelion, but this is not dandelion, don't make a mistake, there is a lot of its efficacy and detoxification quite similarly as Dandelion, but it is a different species of Asteraceae plants.
Chinese name: Xia Jin Yin “小金英” or Tu Er Cai “兔耳菜”
English name: Rabbit milkweed
Scientific name: Ixeris chinensis