梧桐伤
[wú tóng shāng]
'Paulownia Sorrow' - The term 'Paulownia' is a species of ornamental trees associated with beauty and nobility, but this usage links its elegance with melancholy ('sorrow'), conveying a romantic sadness, maybe due to parting or some unfulfilled desire or longing, similar to the fleeting nature of a beautiful but brief moment.