“混种”用英语怎么说？

有一些混种培植出来的兰花是以有名的人士命名的.Some of the orchid hybrids are named after noted personalities.卓喜: 那不奇怪啊,因为它不是纯种狗, 是混种的.Josie: That's not surprising because it's not a thoroughbred, it's a mongrel.卓喜: 我想,应该是牧羊犬和衔回猎...