Guys, I'm not an expert, I just checked the web. So, for what it's worth:Guys, tongmu is hanyu pinyi (phonics in Chinese) which translate to Paulownia (aka kiri)
Tung (Chinese tong) aka China oil tree, aka Vernicia fordii, native to China and Burma, belongs to the spurge family Euphorbiaceae of herbs, shrubs and trees, it is poisonous incl. its flowers and fruits (nuts) and used to extract tung oil. It has several relatives, like mu tree, Japan wood oil tree, but no kiri in that list.
Kiri, aka Japanese Empress tree, belongs to Paulownia family, native to Japan and Korea, it's not poisonous, it's resin- and odorless. It's the tree symbol of the Japanese Imperial house and known as one of the fastest growing trees on Earth.
Hanyu Pinyin is not a tree, it is the name for Chinese Phonetic Alphabet.
This is kiri tree blossom
This is tung