What flowers were once priceless in ancient China?

The grade of ancient flowers is not because of its beautiful appearance, but because of whether the meaning it contains is liked and respected by society. First-class flowers: Baihua Fairy Second-class flowers: Peony, Plum Blossom Third-class flowers: Orchid, Lotus, Chrysanthemum Fourth-class flowers: Apricot, Osmanthus fragrans, Qionghua Fifth-class flowers: Peony, Begonia, Pomegranate, Jasmine, Hibiscus, Narcissus, Chimonanthus praecox, Wei Ziliu and other flowers: Yumei, Datura, Luoyang Jinqi and other flowers: Eighth-class flowers welcome: Plum Blossom. Pear flower, magnolia flower, morning glory, Shandan flower, azalea flower, autumn peony, Yang Shuhua, reed flower, oleander, smiley face flower, golden silk flower, brocade flower, canna, lily flower, duckweed flower and thorn flower.