The correct spelling of the phrase "hast tree" is actually "hawthorn tree". The pronunciation is /ˈhɑːθɔːn triː/. The word "hawthorn" refers to a type of thorny shrub or small tree that produces white or pink flowers and red berries. It is believed to have several health benefits and has been used in traditional medicine for centuries. So the next time you see a hawthorn tree, you'll know how to spell it correctly and impress your friends with your knowledge of IPA phonetic transcription.