chaste tree or its berry (Vitex agnus-castus); (literary) cane or switch made from a chaste tree, used for punishment

(polite) my wife (old)

my wife (humble)

Chinese redbud (Cercis chinensis)

It is a great honor to meet you.

field horsetail (Equisetum arvense)

Hong Kong orchid (Bauhinia blakeana)