Vegetables, flowering vegetables, flowers

I do not know if they are flowers or vegetables. Indeed, they were used as flower decorations but they look like...lettuce to me??? HELP ?

Nonetheless, they are colorful and lovely as decorations.

Aaaahhhhhh, ornamental kale. Thanks, Lydia -The Perfect Pantry. Thanks for answering my curiosity. :D

Taken at Puli Winery, Nantou, Taiwan